Home / 11,686.71-16,127.57-6,381.53

Finding the Fourth Proportional to 11,686.71, 16,127.57 and 6,381.53

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Solution

The fourth proportional to 11,686.71, 16,127.57 and 6,381.53 is: 8,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.71 : 16,127.57 = 6,381.53 : x
  2. Step 2: Convert to fraction form
    11,686.71/16,127.57 = 6,381.53/x
  3. Step 3: Cross multiply
    11,686.71x = 16,127.57 × 6,381.53
  4. Step 4: Simplify right side
    11,686.71x = 102,918,459.24
  5. Step 5: Solve for x
    x = 102,918,459.24/11,686.71
  6. Step 6: Final answer
    x = 8,806.45

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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.