Home / 13,476.72-18,616.02-12,219.18

Finding the Fourth Proportional to 13,476.72, 18,616.02 and 12,219.18

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Solution

The fourth proportional to 13,476.72, 18,616.02 and 12,219.18 is: 16,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.72 : 18,616.02 = 12,219.18 : x
  2. Step 2: Convert to fraction form
    13,476.72/18,616.02 = 12,219.18/x
  3. Step 3: Cross multiply
    13,476.72x = 18,616.02 × 12,219.18
  4. Step 4: Simplify right side
    13,476.72x = 227,472,499.26
  5. Step 5: Solve for x
    x = 227,472,499.26/13,476.72
  6. Step 6: Final answer
    x = 16,878.92

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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.