Home / 13,345.44-20,020.88-4,459.72

Finding the Fourth Proportional to 13,345.44, 20,020.88 and 4,459.72

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Solution

The fourth proportional to 13,345.44, 20,020.88 and 4,459.72 is: 6,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.44 : 20,020.88 = 4,459.72 : x
  2. Step 2: Convert to fraction form
    13,345.44/20,020.88 = 4,459.72/x
  3. Step 3: Cross multiply
    13,345.44x = 20,020.88 × 4,459.72
  4. Step 4: Simplify right side
    13,345.44x = 89,287,518.95
  5. Step 5: Solve for x
    x = 89,287,518.95/13,345.44
  6. Step 6: Final answer
    x = 6,690.49

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Half scale
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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.