Home / 15,437.30-21,302.20-8,723.50

Finding the Fourth Proportional to 15,437.30, 21,302.20 and 8,723.50

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Solution

The fourth proportional to 15,437.30, 21,302.20 and 8,723.50 is: 12,037.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.30 : 21,302.20 = 8,723.50 : x
  2. Step 2: Convert to fraction form
    15,437.30/21,302.20 = 8,723.50/x
  3. Step 3: Cross multiply
    15,437.30x = 21,302.20 × 8,723.50
  4. Step 4: Simplify right side
    15,437.30x = 185,829,741.70
  5. Step 5: Solve for x
    x = 185,829,741.70/15,437.30
  6. Step 6: Final answer
    x = 12,037.71

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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.