Home / 18,526.84-25,566.90-10,143.28

Finding the Fourth Proportional to 18,526.84, 25,566.90 and 10,143.28

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Solution

The fourth proportional to 18,526.84, 25,566.90 and 10,143.28 is: 13,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.84 : 25,566.90 = 10,143.28 : x
  2. Step 2: Convert to fraction form
    18,526.84/25,566.90 = 10,143.28/x
  3. Step 3: Cross multiply
    18,526.84x = 25,566.90 × 10,143.28
  4. Step 4: Simplify right side
    18,526.84x = 259,332,225.43
  5. Step 5: Solve for x
    x = 259,332,225.43/18,526.84
  6. Step 6: Final answer
    x = 13,997.65

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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.