Home / 18,715.32-28,077.30-9,948.24

Finding the Fourth Proportional to 18,715.32, 28,077.30 and 9,948.24

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Solution

The fourth proportional to 18,715.32, 28,077.30 and 9,948.24 is: 14,924.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.32 : 28,077.30 = 9,948.24 : x
  2. Step 2: Convert to fraction form
    18,715.32/28,077.30 = 9,948.24/x
  3. Step 3: Cross multiply
    18,715.32x = 28,077.30 × 9,948.24
  4. Step 4: Simplify right side
    18,715.32x = 279,319,718.95
  5. Step 5: Solve for x
    x = 279,319,718.95/18,715.32
  6. Step 6: Final answer
    x = 14,924.66

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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.