Home / 16,895.20-23,315.40-9,443.20

Finding the Fourth Proportional to 16,895.20, 23,315.40 and 9,443.20

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Solution

The fourth proportional to 16,895.20, 23,315.40 and 9,443.20 is: 13,031.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,895.20 : 23,315.40 = 9,443.20 : x
  2. Step 2: Convert to fraction form
    16,895.20/23,315.40 = 9,443.20/x
  3. Step 3: Cross multiply
    16,895.20x = 23,315.40 × 9,443.20
  4. Step 4: Simplify right side
    16,895.20x = 220,171,985.28
  5. Step 5: Solve for x
    x = 220,171,985.28/16,895.20
  6. Step 6: Final answer
    x = 13,031.63

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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.