Home / 12,295.80-18,434.28-5,717.18

Finding the Fourth Proportional to 12,295.80, 18,434.28 and 5,717.18

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Solution

The fourth proportional to 12,295.80, 18,434.28 and 5,717.18 is: 8,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.80 : 18,434.28 = 5,717.18 : x
  2. Step 2: Convert to fraction form
    12,295.80/18,434.28 = 5,717.18/x
  3. Step 3: Cross multiply
    12,295.80x = 18,434.28 × 5,717.18
  4. Step 4: Simplify right side
    12,295.80x = 105,392,164.46
  5. Step 5: Solve for x
    x = 105,392,164.46/12,295.80
  6. Step 6: Final answer
    x = 8,571.40

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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.