Home / 10,128.30-15,192.45-8,832.30

Finding the Fourth Proportional to 10,128.30, 15,192.45 and 8,832.30

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Solution

The fourth proportional to 10,128.30, 15,192.45 and 8,832.30 is: 13,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.30 : 15,192.45 = 8,832.30 : x
  2. Step 2: Convert to fraction form
    10,128.30/15,192.45 = 8,832.30/x
  3. Step 3: Cross multiply
    10,128.30x = 15,192.45 × 8,832.30
  4. Step 4: Simplify right side
    10,128.30x = 134,184,276.14
  5. Step 5: Solve for x
    x = 134,184,276.14/10,128.30
  6. Step 6: Final answer
    x = 13,248.45

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Similar ratio
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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.