Home / 13,366.23-18,444.15-7,987.59

Finding the Fourth Proportional to 13,366.23, 18,444.15 and 7,987.59

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Solution

The fourth proportional to 13,366.23, 18,444.15 and 7,987.59 is: 11,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.23 : 18,444.15 = 7,987.59 : x
  2. Step 2: Convert to fraction form
    13,366.23/18,444.15 = 7,987.59/x
  3. Step 3: Cross multiply
    13,366.23x = 18,444.15 × 7,987.59
  4. Step 4: Simplify right side
    13,366.23x = 147,324,308.10
  5. Step 5: Solve for x
    x = 147,324,308.10/13,366.23
  6. Step 6: Final answer
    x = 11,022.13

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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.