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Finding the Fourth Proportional to 8,902.98, 13,359.11 and 6,457.98

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Solution

The fourth proportional to 8,902.98, 13,359.11 and 6,457.98 is: 9,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.98 : 13,359.11 = 6,457.98 : x
  2. Step 2: Convert to fraction form
    8,902.98/13,359.11 = 6,457.98/x
  3. Step 3: Cross multiply
    8,902.98x = 13,359.11 × 6,457.98
  4. Step 4: Simplify right side
    8,902.98x = 86,272,881.34
  5. Step 5: Solve for x
    x = 86,272,881.34/8,902.98
  6. Step 6: Final answer
    x = 9,690.34

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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.