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Finding the Fourth Proportional to 8,187.57, 11,303.10 and 5,538.56

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Solution

The fourth proportional to 8,187.57, 11,303.10 and 5,538.56 is: 7,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.57 : 11,303.10 = 5,538.56 : x
  2. Step 2: Convert to fraction form
    8,187.57/11,303.10 = 5,538.56/x
  3. Step 3: Cross multiply
    8,187.57x = 11,303.10 × 5,538.56
  4. Step 4: Simplify right side
    8,187.57x = 62,602,841.02
  5. Step 5: Solve for x
    x = 62,602,841.02/8,187.57
  6. Step 6: Final answer
    x = 7,646.08

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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.