Home / 10,091.52-15,130.48-5,157.12

Finding the Fourth Proportional to 10,091.52, 15,130.48 and 5,157.12

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Solution

The fourth proportional to 10,091.52, 15,130.48 and 5,157.12 is: 7,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.52 : 15,130.48 = 5,157.12 : x
  2. Step 2: Convert to fraction form
    10,091.52/15,130.48 = 5,157.12/x
  3. Step 3: Cross multiply
    10,091.52x = 15,130.48 × 5,157.12
  4. Step 4: Simplify right side
    10,091.52x = 78,029,701.02
  5. Step 5: Solve for x
    x = 78,029,701.02/10,091.52
  6. Step 6: Final answer
    x = 7,732.20

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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.