Home / 13,254.32-18,291.40-7,286.20

Finding the Fourth Proportional to 13,254.32, 18,291.40 and 7,286.20

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Solution

The fourth proportional to 13,254.32, 18,291.40 and 7,286.20 is: 10,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.32 : 18,291.40 = 7,286.20 : x
  2. Step 2: Convert to fraction form
    13,254.32/18,291.40 = 7,286.20/x
  3. Step 3: Cross multiply
    13,254.32x = 18,291.40 × 7,286.20
  4. Step 4: Simplify right side
    13,254.32x = 133,274,798.68
  5. Step 5: Solve for x
    x = 133,274,798.68/13,254.32
  6. Step 6: Final answer
    x = 10,055.20

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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.