Home / 15,516.80-23,276.16-7,717.76

Finding the Fourth Proportional to 15,516.80, 23,276.16 and 7,717.76

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Solution

The fourth proportional to 15,516.80, 23,276.16 and 7,717.76 is: 11,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,516.80 : 23,276.16 = 7,717.76 : x
  2. Step 2: Convert to fraction form
    15,516.80/23,276.16 = 7,717.76/x
  3. Step 3: Cross multiply
    15,516.80x = 23,276.16 × 7,717.76
  4. Step 4: Simplify right side
    15,516.80x = 179,639,816.60
  5. Step 5: Solve for x
    x = 179,639,816.60/15,516.80
  6. Step 6: Final answer
    x = 11,577.12

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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.