Home / 15,527.10-21,427.50-8,453.61

Finding the Fourth Proportional to 15,527.10, 21,427.50 and 8,453.61

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Solution

The fourth proportional to 15,527.10, 21,427.50 and 8,453.61 is: 11,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.10 : 21,427.50 = 8,453.61 : x
  2. Step 2: Convert to fraction form
    15,527.10/21,427.50 = 8,453.61/x
  3. Step 3: Cross multiply
    15,527.10x = 21,427.50 × 8,453.61
  4. Step 4: Simplify right side
    15,527.10x = 181,139,728.28
  5. Step 5: Solve for x
    x = 181,139,728.28/15,527.10
  6. Step 6: Final answer
    x = 11,666.04

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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.