Home / 15,134.79-20,877.38-9,083.42

Finding the Fourth Proportional to 15,134.79, 20,877.38 and 9,083.42

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Solution

The fourth proportional to 15,134.79, 20,877.38 and 9,083.42 is: 12,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.79 : 20,877.38 = 9,083.42 : x
  2. Step 2: Convert to fraction form
    15,134.79/20,877.38 = 9,083.42/x
  3. Step 3: Cross multiply
    15,134.79x = 20,877.38 × 9,083.42
  4. Step 4: Simplify right side
    15,134.79x = 189,637,861.24
  5. Step 5: Solve for x
    x = 189,637,861.24/15,134.79
  6. Step 6: Final answer
    x = 12,529.93

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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.