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Finding the Fourth Proportional to 19,386, 26,752.68 and 10,554

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Solution

The fourth proportional to 19,386, 26,752.68 and 10,554 is: 14,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386 : 26,752.68 = 10,554 : x
  2. Step 2: Convert to fraction form
    19,386/26,752.68 = 10,554/x
  3. Step 3: Cross multiply
    19,386x = 26,752.68 × 10,554
  4. Step 4: Simplify right side
    19,386x = 282,347,784.72
  5. Step 5: Solve for x
    x = 282,347,784.72/19,386
  6. Step 6: Final answer
    x = 14,564.52

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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.