Home / 10,103.87-15,141.76-8,784.92

Finding the Fourth Proportional to 10,103.87, 15,141.76 and 8,784.92

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Solution

The fourth proportional to 10,103.87, 15,141.76 and 8,784.92 is: 13,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.87 : 15,141.76 = 8,784.92 : x
  2. Step 2: Convert to fraction form
    10,103.87/15,141.76 = 8,784.92/x
  3. Step 3: Cross multiply
    10,103.87x = 15,141.76 × 8,784.92
  4. Step 4: Simplify right side
    10,103.87x = 133,019,150.26
  5. Step 5: Solve for x
    x = 133,019,150.26/10,103.87
  6. Step 6: Final answer
    x = 13,165.17

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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.