Home / 15,018.88-20,726.61-9,713.70

Finding the Fourth Proportional to 15,018.88, 20,726.61 and 9,713.70

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Solution

The fourth proportional to 15,018.88, 20,726.61 and 9,713.70 is: 13,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.88 : 20,726.61 = 9,713.70 : x
  2. Step 2: Convert to fraction form
    15,018.88/20,726.61 = 9,713.70/x
  3. Step 3: Cross multiply
    15,018.88x = 20,726.61 × 9,713.70
  4. Step 4: Simplify right side
    15,018.88x = 201,332,004.16
  5. Step 5: Solve for x
    x = 201,332,004.16/15,018.88
  6. Step 6: Final answer
    x = 13,405.26

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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.