Home / 10,422.12-15,637.10-6,207.80

Finding the Fourth Proportional to 10,422.12, 15,637.10 and 6,207.80

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Solution

The fourth proportional to 10,422.12, 15,637.10 and 6,207.80 is: 9,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.12 : 15,637.10 = 6,207.80 : x
  2. Step 2: Convert to fraction form
    10,422.12/15,637.10 = 6,207.80/x
  3. Step 3: Cross multiply
    10,422.12x = 15,637.10 × 6,207.80
  4. Step 4: Simplify right side
    10,422.12x = 97,071,989.38
  5. Step 5: Solve for x
    x = 97,071,989.38/10,422.12
  6. Step 6: Final answer
    x = 9,314.03

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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.