Home / 10,089.48-15,134.70-5,407.56

Finding the Fourth Proportional to 10,089.48, 15,134.70 and 5,407.56

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Solution

The fourth proportional to 10,089.48, 15,134.70 and 5,407.56 is: 8,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.48 : 15,134.70 = 5,407.56 : x
  2. Step 2: Convert to fraction form
    10,089.48/15,134.70 = 5,407.56/x
  3. Step 3: Cross multiply
    10,089.48x = 15,134.70 × 5,407.56
  4. Step 4: Simplify right side
    10,089.48x = 81,841,798.33
  5. Step 5: Solve for x
    x = 81,841,798.33/10,089.48
  6. Step 6: Final answer
    x = 8,111.60

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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.