Home / 9,983.30-14,948.55-7,999.70

Finding the Fourth Proportional to 9,983.30, 14,948.55 and 7,999.70

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Solution

The fourth proportional to 9,983.30, 14,948.55 and 7,999.70 is: 11,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.30 : 14,948.55 = 7,999.70 : x
  2. Step 2: Convert to fraction form
    9,983.30/14,948.55 = 7,999.70/x
  3. Step 3: Cross multiply
    9,983.30x = 14,948.55 × 7,999.70
  4. Step 4: Simplify right side
    9,983.30x = 119,583,915.44
  5. Step 5: Solve for x
    x = 119,583,915.44/9,983.30
  6. Step 6: Final answer
    x = 11,978.40

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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.