Home / 15,547.12-21,463.23-12,489.10

Finding the Fourth Proportional to 15,547.12, 21,463.23 and 12,489.10

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Solution

The fourth proportional to 15,547.12, 21,463.23 and 12,489.10 is: 17,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.12 : 21,463.23 = 12,489.10 : x
  2. Step 2: Convert to fraction form
    15,547.12/21,463.23 = 12,489.10/x
  3. Step 3: Cross multiply
    15,547.12x = 21,463.23 × 12,489.10
  4. Step 4: Simplify right side
    15,547.12x = 268,056,425.79
  5. Step 5: Solve for x
    x = 268,056,425.79/15,547.12
  6. Step 6: Final answer
    x = 17,241.55

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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.