Home / 18,990.68-26,204.86-10,492.28

Finding the Fourth Proportional to 18,990.68, 26,204.86 and 10,492.28

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Solution

The fourth proportional to 18,990.68, 26,204.86 and 10,492.28 is: 14,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.68 : 26,204.86 = 10,492.28 : x
  2. Step 2: Convert to fraction form
    18,990.68/26,204.86 = 10,492.28/x
  3. Step 3: Cross multiply
    18,990.68x = 26,204.86 × 10,492.28
  4. Step 4: Simplify right side
    18,990.68x = 274,948,728.48
  5. Step 5: Solve for x
    x = 274,948,728.48/18,990.68
  6. Step 6: Final answer
    x = 14,478.09

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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.