Home / 13,259.97-18,298.60-7,291.28

Finding the Fourth Proportional to 13,259.97, 18,298.60 and 7,291.28

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Solution

The fourth proportional to 13,259.97, 18,298.60 and 7,291.28 is: 10,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.97 : 18,298.60 = 7,291.28 : x
  2. Step 2: Convert to fraction form
    13,259.97/18,298.60 = 7,291.28/x
  3. Step 3: Cross multiply
    13,259.97x = 18,298.60 × 7,291.28
  4. Step 4: Simplify right side
    13,259.97x = 133,420,216.21
  5. Step 5: Solve for x
    x = 133,420,216.21/13,259.97
  6. Step 6: Final answer
    x = 10,061.88

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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.