Home / 12,284.52-18,426.80-8,386.80

Finding the Fourth Proportional to 12,284.52, 18,426.80 and 8,386.80

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Solution

The fourth proportional to 12,284.52, 18,426.80 and 8,386.80 is: 12,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.52 : 18,426.80 = 8,386.80 : x
  2. Step 2: Convert to fraction form
    12,284.52/18,426.80 = 8,386.80/x
  3. Step 3: Cross multiply
    12,284.52x = 18,426.80 × 8,386.80
  4. Step 4: Simplify right side
    12,284.52x = 154,541,886.24
  5. Step 5: Solve for x
    x = 154,541,886.24/12,284.52
  6. Step 6: Final answer
    x = 12,580.21

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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.