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Finding the Fourth Proportional to 12,894.81, 17,793.90 and 7,588.90

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Solution

The fourth proportional to 12,894.81, 17,793.90 and 7,588.90 is: 10,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.81 : 17,793.90 = 7,588.90 : x
  2. Step 2: Convert to fraction form
    12,894.81/17,793.90 = 7,588.90/x
  3. Step 3: Cross multiply
    12,894.81x = 17,793.90 × 7,588.90
  4. Step 4: Simplify right side
    12,894.81x = 135,036,127.71
  5. Step 5: Solve for x
    x = 135,036,127.71/12,894.81
  6. Step 6: Final answer
    x = 10,472.13

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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.