Home / 16,401.04-22,639.28-9,686.70

Finding the Fourth Proportional to 16,401.04, 22,639.28 and 9,686.70

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Solution

The fourth proportional to 16,401.04, 22,639.28 and 9,686.70 is: 13,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,401.04 : 22,639.28 = 9,686.70 : x
  2. Step 2: Convert to fraction form
    16,401.04/22,639.28 = 9,686.70/x
  3. Step 3: Cross multiply
    16,401.04x = 22,639.28 × 9,686.70
  4. Step 4: Simplify right side
    16,401.04x = 219,299,913.58
  5. Step 5: Solve for x
    x = 219,299,913.58/16,401.04
  6. Step 6: Final answer
    x = 13,371.10

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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.