Home / 26,660.50-39,946.98-9,120.76

Finding the Fourth Proportional to 26,660.50, 39,946.98 and 9,120.76

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Solution

The fourth proportional to 26,660.50, 39,946.98 and 9,120.76 is: 13,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,660.50 : 39,946.98 = 9,120.76 : x
  2. Step 2: Convert to fraction form
    26,660.50/39,946.98 = 9,120.76/x
  3. Step 3: Cross multiply
    26,660.50x = 39,946.98 × 9,120.76
  4. Step 4: Simplify right side
    26,660.50x = 364,346,817.30
  5. Step 5: Solve for x
    x = 364,346,817.30/26,660.50
  6. Step 6: Final answer
    x = 13,666.17

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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.