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Finding the Fourth Proportional to 8,777.16, 13,141.98 and 7,200.36

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Solution

The fourth proportional to 8,777.16, 13,141.98 and 7,200.36 is: 10,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.16 : 13,141.98 = 7,200.36 : x
  2. Step 2: Convert to fraction form
    8,777.16/13,141.98 = 7,200.36/x
  3. Step 3: Cross multiply
    8,777.16x = 13,141.98 × 7,200.36
  4. Step 4: Simplify right side
    8,777.16x = 94,626,987.11
  5. Step 5: Solve for x
    x = 94,626,987.11/8,777.16
  6. Step 6: Final answer
    x = 10,781.05

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1.5x scale

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.