Home / 12,932.20-19,382.10-9,465.40

Finding the Fourth Proportional to 12,932.20, 19,382.10 and 9,465.40

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Solution

The fourth proportional to 12,932.20, 19,382.10 and 9,465.40 is: 14,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.20 : 19,382.10 = 9,465.40 : x
  2. Step 2: Convert to fraction form
    12,932.20/19,382.10 = 9,465.40/x
  3. Step 3: Cross multiply
    12,932.20x = 19,382.10 × 9,465.40
  4. Step 4: Simplify right side
    12,932.20x = 183,459,329.34
  5. Step 5: Solve for x
    x = 183,459,329.34/12,932.20
  6. Step 6: Final answer
    x = 14,186.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.