Home / 9,987.26-14,982.10-4,140.68

Finding the Fourth Proportional to 9,987.26, 14,982.10 and 4,140.68

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Solution

The fourth proportional to 9,987.26, 14,982.10 and 4,140.68 is: 6,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.26 : 14,982.10 = 4,140.68 : x
  2. Step 2: Convert to fraction form
    9,987.26/14,982.10 = 4,140.68/x
  3. Step 3: Cross multiply
    9,987.26x = 14,982.10 × 4,140.68
  4. Step 4: Simplify right side
    9,987.26x = 62,036,081.83
  5. Step 5: Solve for x
    x = 62,036,081.83/9,987.26
  6. Step 6: Final answer
    x = 6,211.52

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1.5x scale

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.