Home / 12,584.20-18,833.10-11,547.40

Finding the Fourth Proportional to 12,584.20, 18,833.10 and 11,547.40

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Solution

The fourth proportional to 12,584.20, 18,833.10 and 11,547.40 is: 17,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.20 : 18,833.10 = 11,547.40 : x
  2. Step 2: Convert to fraction form
    12,584.20/18,833.10 = 11,547.40/x
  3. Step 3: Cross multiply
    12,584.20x = 18,833.10 × 11,547.40
  4. Step 4: Simplify right side
    12,584.20x = 217,473,338.94
  5. Step 5: Solve for x
    x = 217,473,338.94/12,584.20
  6. Step 6: Final answer
    x = 17,281.46

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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.