Home / 15,898.40-23,847.60-12,219.20

Finding the Fourth Proportional to 15,898.40, 23,847.60 and 12,219.20

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Solution

The fourth proportional to 15,898.40, 23,847.60 and 12,219.20 is: 18,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.40 : 23,847.60 = 12,219.20 : x
  2. Step 2: Convert to fraction form
    15,898.40/23,847.60 = 12,219.20/x
  3. Step 3: Cross multiply
    15,898.40x = 23,847.60 × 12,219.20
  4. Step 4: Simplify right side
    15,898.40x = 291,398,593.92
  5. Step 5: Solve for x
    x = 291,398,593.92/15,898.40
  6. Step 6: Final answer
    x = 18,328.80

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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.