Home / 13,261.12-18,300.78-7,293.22

Finding the Fourth Proportional to 13,261.12, 18,300.78 and 7,293.22

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Solution

The fourth proportional to 13,261.12, 18,300.78 and 7,293.22 is: 10,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.12 : 18,300.78 = 7,293.22 : x
  2. Step 2: Convert to fraction form
    13,261.12/18,300.78 = 7,293.22/x
  3. Step 3: Cross multiply
    13,261.12x = 18,300.78 × 7,293.22
  4. Step 4: Simplify right side
    13,261.12x = 133,471,614.71
  5. Step 5: Solve for x
    x = 133,471,614.71/13,261.12
  6. Step 6: Final answer
    x = 10,064.88

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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.