Home / 17,981.60-26,981.10-7,459.29

Finding the Fourth Proportional to 17,981.60, 26,981.10 and 7,459.29

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Solution

The fourth proportional to 17,981.60, 26,981.10 and 7,459.29 is: 11,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,981.60 : 26,981.10 = 7,459.29 : x
  2. Step 2: Convert to fraction form
    17,981.60/26,981.10 = 7,459.29/x
  3. Step 3: Cross multiply
    17,981.60x = 26,981.10 × 7,459.29
  4. Step 4: Simplify right side
    17,981.60x = 201,259,849.42
  5. Step 5: Solve for x
    x = 201,259,849.42/17,981.60
  6. Step 6: Final answer
    x = 11,192.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.