Home / 16,630.40-22,943.93-12,803.21

Finding the Fourth Proportional to 16,630.40, 22,943.93 and 12,803.21

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Solution

The fourth proportional to 16,630.40, 22,943.93 and 12,803.21 is: 17,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,630.40 : 22,943.93 = 12,803.21 : x
  2. Step 2: Convert to fraction form
    16,630.40/22,943.93 = 12,803.21/x
  3. Step 3: Cross multiply
    16,630.40x = 22,943.93 × 12,803.21
  4. Step 4: Simplify right side
    16,630.40x = 293,755,775.28
  5. Step 5: Solve for x
    x = 293,755,775.28/16,630.40
  6. Step 6: Final answer
    x = 17,663.78

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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.