Home / 9,987.60-14,976.54-5,309.85

Finding the Fourth Proportional to 9,987.60, 14,976.54 and 5,309.85

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Solution

The fourth proportional to 9,987.60, 14,976.54 and 5,309.85 is: 7,962.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.60 : 14,976.54 = 5,309.85 : x
  2. Step 2: Convert to fraction form
    9,987.60/14,976.54 = 5,309.85/x
  3. Step 3: Cross multiply
    9,987.60x = 14,976.54 × 5,309.85
  4. Step 4: Simplify right side
    9,987.60x = 79,523,154.37
  5. Step 5: Solve for x
    x = 79,523,154.37/9,987.60
  6. Step 6: Final answer
    x = 7,962.19

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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.