Home / 10,503.12-15,673.38-9,339.60

Finding the Fourth Proportional to 10,503.12, 15,673.38 and 9,339.60

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Solution

The fourth proportional to 10,503.12, 15,673.38 and 9,339.60 is: 13,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.12 : 15,673.38 = 9,339.60 : x
  2. Step 2: Convert to fraction form
    10,503.12/15,673.38 = 9,339.60/x
  3. Step 3: Cross multiply
    10,503.12x = 15,673.38 × 9,339.60
  4. Step 4: Simplify right side
    10,503.12x = 146,383,099.85
  5. Step 5: Solve for x
    x = 146,383,099.85/10,503.12
  6. Step 6: Final answer
    x = 13,937.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.