Home / 15,503.90-23,230.20-8,918.60

Finding the Fourth Proportional to 15,503.90, 23,230.20 and 8,918.60

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Solution

The fourth proportional to 15,503.90, 23,230.20 and 8,918.60 is: 13,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503.90 : 23,230.20 = 8,918.60 : x
  2. Step 2: Convert to fraction form
    15,503.90/23,230.20 = 8,918.60/x
  3. Step 3: Cross multiply
    15,503.90x = 23,230.20 × 8,918.60
  4. Step 4: Simplify right side
    15,503.90x = 207,180,861.72
  5. Step 5: Solve for x
    x = 207,180,861.72/15,503.90
  6. Step 6: Final answer
    x = 13,363.14

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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.