Home / 9,979.60-14,962.20-6,518.80

Finding the Fourth Proportional to 9,979.60, 14,962.20 and 6,518.80

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Solution

The fourth proportional to 9,979.60, 14,962.20 and 6,518.80 is: 9,773.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.60 : 14,962.20 = 6,518.80 : x
  2. Step 2: Convert to fraction form
    9,979.60/14,962.20 = 6,518.80/x
  3. Step 3: Cross multiply
    9,979.60x = 14,962.20 × 6,518.80
  4. Step 4: Simplify right side
    9,979.60x = 97,535,589.36
  5. Step 5: Solve for x
    x = 97,535,589.36/9,979.60
  6. Step 6: Final answer
    x = 9,773.50

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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.