Home / 18,417.22-25,409.10-12,047.45

Finding the Fourth Proportional to 18,417.22, 25,409.10 and 12,047.45

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Solution

The fourth proportional to 18,417.22, 25,409.10 and 12,047.45 is: 16,621.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.22 : 25,409.10 = 12,047.45 : x
  2. Step 2: Convert to fraction form
    18,417.22/25,409.10 = 12,047.45/x
  3. Step 3: Cross multiply
    18,417.22x = 25,409.10 × 12,047.45
  4. Step 4: Simplify right side
    18,417.22x = 306,114,861.80
  5. Step 5: Solve for x
    x = 306,114,861.80/18,417.22
  6. Step 6: Final answer
    x = 16,621.12

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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.