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Finding the Fourth Proportional to 8,191.04, 11,303.28 and 4,655.12

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Solution

The fourth proportional to 8,191.04, 11,303.28 and 4,655.12 is: 6,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.04 : 11,303.28 = 4,655.12 : x
  2. Step 2: Convert to fraction form
    8,191.04/11,303.28 = 4,655.12/x
  3. Step 3: Cross multiply
    8,191.04x = 11,303.28 × 4,655.12
  4. Step 4: Simplify right side
    8,191.04x = 52,618,124.79
  5. Step 5: Solve for x
    x = 52,618,124.79/8,191.04
  6. Step 6: Final answer
    x = 6,423.86

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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.