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Finding the Fourth Proportional to 8,968.20, 13,434.48 and 7,011.24

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Solution

The fourth proportional to 8,968.20, 13,434.48 and 7,011.24 is: 10,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.20 : 13,434.48 = 7,011.24 : x
  2. Step 2: Convert to fraction form
    8,968.20/13,434.48 = 7,011.24/x
  3. Step 3: Cross multiply
    8,968.20x = 13,434.48 × 7,011.24
  4. Step 4: Simplify right side
    8,968.20x = 94,192,363.56
  5. Step 5: Solve for x
    x = 94,192,363.56/8,968.20
  6. Step 6: Final answer
    x = 10,502.93

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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.