Home / 18,478.32-25,498.66-10,518.95

Finding the Fourth Proportional to 18,478.32, 25,498.66 and 10,518.95

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Solution

The fourth proportional to 18,478.32, 25,498.66 and 10,518.95 is: 14,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.32 : 25,498.66 = 10,518.95 : x
  2. Step 2: Convert to fraction form
    18,478.32/25,498.66 = 10,518.95/x
  3. Step 3: Cross multiply
    18,478.32x = 25,498.66 × 10,518.95
  4. Step 4: Simplify right side
    18,478.32x = 268,219,129.61
  5. Step 5: Solve for x
    x = 268,219,129.61/18,478.32
  6. Step 6: Final answer
    x = 14,515.34

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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.