Home / 16,972.86-23,421.56-9,418.65

Finding the Fourth Proportional to 16,972.86, 23,421.56 and 9,418.65

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Solution

The fourth proportional to 16,972.86, 23,421.56 and 9,418.65 is: 12,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.86 : 23,421.56 = 9,418.65 : x
  2. Step 2: Convert to fraction form
    16,972.86/23,421.56 = 9,418.65/x
  3. Step 3: Cross multiply
    16,972.86x = 23,421.56 × 9,418.65
  4. Step 4: Simplify right side
    16,972.86x = 220,599,341.17
  5. Step 5: Solve for x
    x = 220,599,341.17/16,972.86
  6. Step 6: Final answer
    x = 12,997.18

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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.