Home / 14,870.23-20,520.74-8,064.15

Finding the Fourth Proportional to 14,870.23, 20,520.74 and 8,064.15

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Solution

The fourth proportional to 14,870.23, 20,520.74 and 8,064.15 is: 11,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.23 : 20,520.74 = 8,064.15 : x
  2. Step 2: Convert to fraction form
    14,870.23/20,520.74 = 8,064.15/x
  3. Step 3: Cross multiply
    14,870.23x = 20,520.74 × 8,064.15
  4. Step 4: Simplify right side
    14,870.23x = 165,482,243.03
  5. Step 5: Solve for x
    x = 165,482,243.03/14,870.23
  6. Step 6: Final answer
    x = 11,128.43

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.