Home / 12,864.48-19,295.28-8,731.04

Finding the Fourth Proportional to 12,864.48, 19,295.28 and 8,731.04

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Solution

The fourth proportional to 12,864.48, 19,295.28 and 8,731.04 is: 13,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.48 : 19,295.28 = 8,731.04 : x
  2. Step 2: Convert to fraction form
    12,864.48/19,295.28 = 8,731.04/x
  3. Step 3: Cross multiply
    12,864.48x = 19,295.28 × 8,731.04
  4. Step 4: Simplify right side
    12,864.48x = 168,467,861.49
  5. Step 5: Solve for x
    x = 168,467,861.49/12,864.48
  6. Step 6: Final answer
    x = 13,095.58

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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.