Home / 18,901.18-26,080.77-11,345.86

Finding the Fourth Proportional to 18,901.18, 26,080.77 and 11,345.86

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Solution

The fourth proportional to 18,901.18, 26,080.77 and 11,345.86 is: 15,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.18 : 26,080.77 = 11,345.86 : x
  2. Step 2: Convert to fraction form
    18,901.18/26,080.77 = 11,345.86/x
  3. Step 3: Cross multiply
    18,901.18x = 26,080.77 × 11,345.86
  4. Step 4: Simplify right side
    18,901.18x = 295,908,765.11
  5. Step 5: Solve for x
    x = 295,908,765.11/18,901.18
  6. Step 6: Final answer
    x = 15,655.57

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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.