Home / 8,460.44-12,690.66-5,345.18

Finding the Fourth Proportional to 8,460.44, 12,690.66 and 5,345.18

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Solution

The fourth proportional to 8,460.44, 12,690.66 and 5,345.18 is: 8,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.44 : 12,690.66 = 5,345.18 : x
  2. Step 2: Convert to fraction form
    8,460.44/12,690.66 = 5,345.18/x
  3. Step 3: Cross multiply
    8,460.44x = 12,690.66 × 5,345.18
  4. Step 4: Simplify right side
    8,460.44x = 67,833,862.02
  5. Step 5: Solve for x
    x = 67,833,862.02/8,460.44
  6. Step 6: Final answer
    x = 8,017.77

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.