Home / 15,242.32-21,034.80-8,953.44

Finding the Fourth Proportional to 15,242.32, 21,034.80 and 8,953.44

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Solution

The fourth proportional to 15,242.32, 21,034.80 and 8,953.44 is: 12,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.32 : 21,034.80 = 8,953.44 : x
  2. Step 2: Convert to fraction form
    15,242.32/21,034.80 = 8,953.44/x
  3. Step 3: Cross multiply
    15,242.32x = 21,034.80 × 8,953.44
  4. Step 4: Simplify right side
    15,242.32x = 188,333,819.71
  5. Step 5: Solve for x
    x = 188,333,819.71/15,242.32
  6. Step 6: Final answer
    x = 12,355.98

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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.