Home / 15,331.95-21,158.46-8,526.06

Finding the Fourth Proportional to 15,331.95, 21,158.46 and 8,526.06

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Solution

The fourth proportional to 15,331.95, 21,158.46 and 8,526.06 is: 11,766.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331.95 : 21,158.46 = 8,526.06 : x
  2. Step 2: Convert to fraction form
    15,331.95/21,158.46 = 8,526.06/x
  3. Step 3: Cross multiply
    15,331.95x = 21,158.46 × 8,526.06
  4. Step 4: Simplify right side
    15,331.95x = 180,398,299.47
  5. Step 5: Solve for x
    x = 180,398,299.47/15,331.95
  6. Step 6: Final answer
    x = 11,766.17

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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.