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Finding the Fourth Proportional to 17,368, 26,053.28 and 6,979.80

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Solution

The fourth proportional to 17,368, 26,053.28 and 6,979.80 is: 10,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,368 : 26,053.28 = 6,979.80 : x
  2. Step 2: Convert to fraction form
    17,368/26,053.28 = 6,979.80/x
  3. Step 3: Cross multiply
    17,368x = 26,053.28 × 6,979.80
  4. Step 4: Simplify right side
    17,368x = 181,846,683.74
  5. Step 5: Solve for x
    x = 181,846,683.74/17,368
  6. Step 6: Final answer
    x = 10,470.21

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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.