Home / 10,130.01-15,177.55-9,102.81

Finding the Fourth Proportional to 10,130.01, 15,177.55 and 9,102.81

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Solution

The fourth proportional to 10,130.01, 15,177.55 and 9,102.81 is: 13,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.01 : 15,177.55 = 9,102.81 : x
  2. Step 2: Convert to fraction form
    10,130.01/15,177.55 = 9,102.81/x
  3. Step 3: Cross multiply
    10,130.01x = 15,177.55 × 9,102.81
  4. Step 4: Simplify right side
    10,130.01x = 138,158,353.92
  5. Step 5: Solve for x
    x = 138,158,353.92/10,130.01
  6. Step 6: Final answer
    x = 13,638.52

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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.