Home / 17,887.62-26,831.74-9,985.57

Finding the Fourth Proportional to 17,887.62, 26,831.74 and 9,985.57

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Solution

The fourth proportional to 17,887.62, 26,831.74 and 9,985.57 is: 14,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.62 : 26,831.74 = 9,985.57 : x
  2. Step 2: Convert to fraction form
    17,887.62/26,831.74 = 9,985.57/x
  3. Step 3: Cross multiply
    17,887.62x = 26,831.74 × 9,985.57
  4. Step 4: Simplify right side
    17,887.62x = 267,930,217.99
  5. Step 5: Solve for x
    x = 267,930,217.99/17,887.62
  6. Step 6: Final answer
    x = 14,978.53

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1.5x scale

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.