Home / 8,931.78-13,397.80-4,252.28

Finding the Fourth Proportional to 8,931.78, 13,397.80 and 4,252.28

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Solution

The fourth proportional to 8,931.78, 13,397.80 and 4,252.28 is: 6,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.78 : 13,397.80 = 4,252.28 : x
  2. Step 2: Convert to fraction form
    8,931.78/13,397.80 = 4,252.28/x
  3. Step 3: Cross multiply
    8,931.78x = 13,397.80 × 4,252.28
  4. Step 4: Simplify right side
    8,931.78x = 56,971,196.98
  5. Step 5: Solve for x
    x = 56,971,196.98/8,931.78
  6. Step 6: Final answer
    x = 6,378.48

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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.