Home / 16,981.13-25,463.50-7,117.76

Finding the Fourth Proportional to 16,981.13, 25,463.50 and 7,117.76

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Solution

The fourth proportional to 16,981.13, 25,463.50 and 7,117.76 is: 10,673.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.13 : 25,463.50 = 7,117.76 : x
  2. Step 2: Convert to fraction form
    16,981.13/25,463.50 = 7,117.76/x
  3. Step 3: Cross multiply
    16,981.13x = 25,463.50 × 7,117.76
  4. Step 4: Simplify right side
    16,981.13x = 181,242,984.39
  5. Step 5: Solve for x
    x = 181,242,984.39/16,981.13
  6. Step 6: Final answer
    x = 10,673.20

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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.