Home / 26,261.36-39,359.19-13,117.40

Finding the Fourth Proportional to 26,261.36, 39,359.19 and 13,117.40

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Solution

The fourth proportional to 26,261.36, 39,359.19 and 13,117.40 is: 19,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,261.36 : 39,359.19 = 13,117.40 : x
  2. Step 2: Convert to fraction form
    26,261.36/39,359.19 = 13,117.40/x
  3. Step 3: Cross multiply
    26,261.36x = 39,359.19 × 13,117.40
  4. Step 4: Simplify right side
    26,261.36x = 516,290,386.49
  5. Step 5: Solve for x
    x = 516,290,386.49/26,261.36
  6. Step 6: Final answer
    x = 19,659.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.