Home / 18,901.56-26,040.48-13,587.18

Finding the Fourth Proportional to 18,901.56, 26,040.48 and 13,587.18

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Solution

The fourth proportional to 18,901.56, 26,040.48 and 13,587.18 is: 18,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.56 : 26,040.48 = 13,587.18 : x
  2. Step 2: Convert to fraction form
    18,901.56/26,040.48 = 13,587.18/x
  3. Step 3: Cross multiply
    18,901.56x = 26,040.48 × 13,587.18
  4. Step 4: Simplify right side
    18,901.56x = 353,816,689.05
  5. Step 5: Solve for x
    x = 353,816,689.05/18,901.56
  6. Step 6: Final answer
    x = 18,718.91

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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.