Home / 13,943.48-19,234.88-8,902.40

Finding the Fourth Proportional to 13,943.48, 19,234.88 and 8,902.40

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Solution

The fourth proportional to 13,943.48, 19,234.88 and 8,902.40 is: 12,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.48 : 19,234.88 = 8,902.40 : x
  2. Step 2: Convert to fraction form
    13,943.48/19,234.88 = 8,902.40/x
  3. Step 3: Cross multiply
    13,943.48x = 19,234.88 × 8,902.40
  4. Step 4: Simplify right side
    13,943.48x = 171,236,635.35
  5. Step 5: Solve for x
    x = 171,236,635.35/13,943.48
  6. Step 6: Final answer
    x = 12,280.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.