Home / 18,697.95-25,803.45-11,148.66

Finding the Fourth Proportional to 18,697.95, 25,803.45 and 11,148.66

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Solution

The fourth proportional to 18,697.95, 25,803.45 and 11,148.66 is: 15,385.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.95 : 25,803.45 = 11,148.66 : x
  2. Step 2: Convert to fraction form
    18,697.95/25,803.45 = 11,148.66/x
  3. Step 3: Cross multiply
    18,697.95x = 25,803.45 × 11,148.66
  4. Step 4: Simplify right side
    18,697.95x = 287,673,890.88
  5. Step 5: Solve for x
    x = 287,673,890.88/18,697.95
  6. Step 6: Final answer
    x = 15,385.32

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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.