Home / 14,284.40-21,426.60-10,129.10

Finding the Fourth Proportional to 14,284.40, 21,426.60 and 10,129.10

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Solution

The fourth proportional to 14,284.40, 21,426.60 and 10,129.10 is: 15,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.40 : 21,426.60 = 10,129.10 : x
  2. Step 2: Convert to fraction form
    14,284.40/21,426.60 = 10,129.10/x
  3. Step 3: Cross multiply
    14,284.40x = 21,426.60 × 10,129.10
  4. Step 4: Simplify right side
    14,284.40x = 217,032,174.06
  5. Step 5: Solve for x
    x = 217,032,174.06/14,284.40
  6. Step 6: Final answer
    x = 15,193.65

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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.