Home / 15,454.42-21,327.23-9,079.30

Finding the Fourth Proportional to 15,454.42, 21,327.23 and 9,079.30

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Solution

The fourth proportional to 15,454.42, 21,327.23 and 9,079.30 is: 12,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.42 : 21,327.23 = 9,079.30 : x
  2. Step 2: Convert to fraction form
    15,454.42/21,327.23 = 9,079.30/x
  3. Step 3: Cross multiply
    15,454.42x = 21,327.23 × 9,079.30
  4. Step 4: Simplify right side
    15,454.42x = 193,636,319.34
  5. Step 5: Solve for x
    x = 193,636,319.34/15,454.42
  6. Step 6: Final answer
    x = 12,529.51

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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.