Home / 9,986.10-14,967.15-4,139.70

Finding the Fourth Proportional to 9,986.10, 14,967.15 and 4,139.70

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Solution

The fourth proportional to 9,986.10, 14,967.15 and 4,139.70 is: 6,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.10 : 14,967.15 = 4,139.70 : x
  2. Step 2: Convert to fraction form
    9,986.10/14,967.15 = 4,139.70/x
  3. Step 3: Cross multiply
    9,986.10x = 14,967.15 × 4,139.70
  4. Step 4: Simplify right side
    9,986.10x = 61,959,510.86
  5. Step 5: Solve for x
    x = 61,959,510.86/9,986.10
  6. Step 6: Final answer
    x = 6,204.58

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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.