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Finding the Fourth Proportional to 8,360.64, 11,526.40 and 6,938.88

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Solution

The fourth proportional to 8,360.64, 11,526.40 and 6,938.88 is: 9,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.64 : 11,526.40 = 6,938.88 : x
  2. Step 2: Convert to fraction form
    8,360.64/11,526.40 = 6,938.88/x
  3. Step 3: Cross multiply
    8,360.64x = 11,526.40 × 6,938.88
  4. Step 4: Simplify right side
    8,360.64x = 79,980,306.43
  5. Step 5: Solve for x
    x = 79,980,306.43/8,360.64
  6. Step 6: Final answer
    x = 9,566.29

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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.