Home / 18,990.20-26,206.38-10,492.32

Finding the Fourth Proportional to 18,990.20, 26,206.38 and 10,492.32

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Solution

The fourth proportional to 18,990.20, 26,206.38 and 10,492.32 is: 14,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.20 : 26,206.38 = 10,492.32 : x
  2. Step 2: Convert to fraction form
    18,990.20/26,206.38 = 10,492.32/x
  3. Step 3: Cross multiply
    18,990.20x = 26,206.38 × 10,492.32
  4. Step 4: Simplify right side
    18,990.20x = 274,965,593.97
  5. Step 5: Solve for x
    x = 274,965,593.97/18,990.20
  6. Step 6: Final answer
    x = 14,479.35

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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.