Home / 16,863.20-23,271.21-9,411.20

Finding the Fourth Proportional to 16,863.20, 23,271.21 and 9,411.20

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Solution

The fourth proportional to 16,863.20, 23,271.21 and 9,411.20 is: 12,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,863.20 : 23,271.21 = 9,411.20 : x
  2. Step 2: Convert to fraction form
    16,863.20/23,271.21 = 9,411.20/x
  3. Step 3: Cross multiply
    16,863.20x = 23,271.21 × 9,411.20
  4. Step 4: Simplify right side
    16,863.20x = 219,009,895.20
  5. Step 5: Solve for x
    x = 219,009,895.20/16,863.20
  6. Step 6: Final answer
    x = 12,987.45

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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.