Home / 14,302.90-21,455.78-5,985.52

Finding the Fourth Proportional to 14,302.90, 21,455.78 and 5,985.52

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Solution

The fourth proportional to 14,302.90, 21,455.78 and 5,985.52 is: 8,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.90 : 21,455.78 = 5,985.52 : x
  2. Step 2: Convert to fraction form
    14,302.90/21,455.78 = 5,985.52/x
  3. Step 3: Cross multiply
    14,302.90x = 21,455.78 × 5,985.52
  4. Step 4: Simplify right side
    14,302.90x = 128,424,000.31
  5. Step 5: Solve for x
    x = 128,424,000.31/14,302.90
  6. Step 6: Final answer
    x = 8,978.88

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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.