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Finding the Fourth Proportional to 8,337.04, 11,501.52 and 4,978.78

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Solution

The fourth proportional to 8,337.04, 11,501.52 and 4,978.78 is: 6,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.04 : 11,501.52 = 4,978.78 : x
  2. Step 2: Convert to fraction form
    8,337.04/11,501.52 = 4,978.78/x
  3. Step 3: Cross multiply
    8,337.04x = 11,501.52 × 4,978.78
  4. Step 4: Simplify right side
    8,337.04x = 57,263,537.75
  5. Step 5: Solve for x
    x = 57,263,537.75/8,337.04
  6. Step 6: Final answer
    x = 6,868.57

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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.