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Finding the Fourth Proportional to 11,352.60, 15,666.59 and 6,384.60

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Solution

The fourth proportional to 11,352.60, 15,666.59 and 6,384.60 is: 8,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.60 : 15,666.59 = 6,384.60 : x
  2. Step 2: Convert to fraction form
    11,352.60/15,666.59 = 6,384.60/x
  3. Step 3: Cross multiply
    11,352.60x = 15,666.59 × 6,384.60
  4. Step 4: Simplify right side
    11,352.60x = 100,024,878.59
  5. Step 5: Solve for x
    x = 100,024,878.59/11,352.60
  6. Step 6: Final answer
    x = 8,810.75

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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.