Home / 12,898.20-19,376.10-12,552.60

Finding the Fourth Proportional to 12,898.20, 19,376.10 and 12,552.60

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Solution

The fourth proportional to 12,898.20, 19,376.10 and 12,552.60 is: 18,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.20 : 19,376.10 = 12,552.60 : x
  2. Step 2: Convert to fraction form
    12,898.20/19,376.10 = 12,552.60/x
  3. Step 3: Cross multiply
    12,898.20x = 19,376.10 × 12,552.60
  4. Step 4: Simplify right side
    12,898.20x = 243,220,432.86
  5. Step 5: Solve for x
    x = 243,220,432.86/12,898.20
  6. Step 6: Final answer
    x = 18,856.93

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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.