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Finding the Fourth Proportional to 11,352, 15,663.38 and 6,635.36

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Solution

The fourth proportional to 11,352, 15,663.38 and 6,635.36 is: 9,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352 : 15,663.38 = 6,635.36 : x
  2. Step 2: Convert to fraction form
    11,352/15,663.38 = 6,635.36/x
  3. Step 3: Cross multiply
    11,352x = 15,663.38 × 6,635.36
  4. Step 4: Simplify right side
    11,352x = 103,932,165.12
  5. Step 5: Solve for x
    x = 103,932,165.12/11,352
  6. Step 6: Final answer
    x = 9,155.41

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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.