Home / 9,987.14-14,980.77-4,439.18

Finding the Fourth Proportional to 9,987.14, 14,980.77 and 4,439.18

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Solution

The fourth proportional to 9,987.14, 14,980.77 and 4,439.18 is: 6,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.14 : 14,980.77 = 4,439.18 : x
  2. Step 2: Convert to fraction form
    9,987.14/14,980.77 = 4,439.18/x
  3. Step 3: Cross multiply
    9,987.14x = 14,980.77 × 4,439.18
  4. Step 4: Simplify right side
    9,987.14x = 66,502,334.57
  5. Step 5: Solve for x
    x = 66,502,334.57/9,987.14
  6. Step 6: Final answer
    x = 6,658.80

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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.