Home / 14,140.10-21,210.15-11,515.70

Finding the Fourth Proportional to 14,140.10, 21,210.15 and 11,515.70

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Solution

The fourth proportional to 14,140.10, 21,210.15 and 11,515.70 is: 17,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.10 : 21,210.15 = 11,515.70 : x
  2. Step 2: Convert to fraction form
    14,140.10/21,210.15 = 11,515.70/x
  3. Step 3: Cross multiply
    14,140.10x = 21,210.15 × 11,515.70
  4. Step 4: Simplify right side
    14,140.10x = 244,249,724.36
  5. Step 5: Solve for x
    x = 244,249,724.36/14,140.10
  6. Step 6: Final answer
    x = 17,273.55

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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.