Home / 15,498.95-21,387.06-8,693.26

Finding the Fourth Proportional to 15,498.95, 21,387.06 and 8,693.26

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Solution

The fourth proportional to 15,498.95, 21,387.06 and 8,693.26 is: 11,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.95 : 21,387.06 = 8,693.26 : x
  2. Step 2: Convert to fraction form
    15,498.95/21,387.06 = 8,693.26/x
  3. Step 3: Cross multiply
    15,498.95x = 21,387.06 × 8,693.26
  4. Step 4: Simplify right side
    15,498.95x = 185,923,219.75
  5. Step 5: Solve for x
    x = 185,923,219.75/15,498.95
  6. Step 6: Final answer
    x = 11,995.86

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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.