Home / 18,407.12-27,610.86-5,259.40

Finding the Fourth Proportional to 18,407.12, 27,610.86 and 5,259.40

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Solution

The fourth proportional to 18,407.12, 27,610.86 and 5,259.40 is: 7,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.12 : 27,610.86 = 5,259.40 : x
  2. Step 2: Convert to fraction form
    18,407.12/27,610.86 = 5,259.40/x
  3. Step 3: Cross multiply
    18,407.12x = 27,610.86 × 5,259.40
  4. Step 4: Simplify right side
    18,407.12x = 145,216,557.08
  5. Step 5: Solve for x
    x = 145,216,557.08/18,407.12
  6. Step 6: Final answer
    x = 7,889.15

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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.