Home / 12,572.48-18,861.24-4,781.36

Finding the Fourth Proportional to 12,572.48, 18,861.24 and 4,781.36

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Solution

The fourth proportional to 12,572.48, 18,861.24 and 4,781.36 is: 7,173.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.48 : 18,861.24 = 4,781.36 : x
  2. Step 2: Convert to fraction form
    12,572.48/18,861.24 = 4,781.36/x
  3. Step 3: Cross multiply
    12,572.48x = 18,861.24 × 4,781.36
  4. Step 4: Simplify right side
    12,572.48x = 90,182,378.49
  5. Step 5: Solve for x
    x = 90,182,378.49/12,572.48
  6. Step 6: Final answer
    x = 7,173.00

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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.