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Finding the Fourth Proportional to 8,335.07, 11,502.54 and 4,978.18

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Solution

The fourth proportional to 8,335.07, 11,502.54 and 4,978.18 is: 6,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.07 : 11,502.54 = 4,978.18 : x
  2. Step 2: Convert to fraction form
    8,335.07/11,502.54 = 4,978.18/x
  3. Step 3: Cross multiply
    8,335.07x = 11,502.54 × 4,978.18
  4. Step 4: Simplify right side
    8,335.07x = 57,261,728.96
  5. Step 5: Solve for x
    x = 57,261,728.96/8,335.07
  6. Step 6: Final answer
    x = 6,869.98

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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.