Home / 18,426.06-25,420.71-11,340.18

Finding the Fourth Proportional to 18,426.06, 25,420.71 and 11,340.18

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Solution

The fourth proportional to 18,426.06, 25,420.71 and 11,340.18 is: 15,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.06 : 25,420.71 = 11,340.18 : x
  2. Step 2: Convert to fraction form
    18,426.06/25,420.71 = 11,340.18/x
  3. Step 3: Cross multiply
    18,426.06x = 25,420.71 × 11,340.18
  4. Step 4: Simplify right side
    18,426.06x = 288,275,427.13
  5. Step 5: Solve for x
    x = 288,275,427.13/18,426.06
  6. Step 6: Final answer
    x = 15,644.98

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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.