Home / 17,678.36-24,386.86-10,961.80

Finding the Fourth Proportional to 17,678.36, 24,386.86 and 10,961.80

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Solution

The fourth proportional to 17,678.36, 24,386.86 and 10,961.80 is: 15,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.36 : 24,386.86 = 10,961.80 : x
  2. Step 2: Convert to fraction form
    17,678.36/24,386.86 = 10,961.80/x
  3. Step 3: Cross multiply
    17,678.36x = 24,386.86 × 10,961.80
  4. Step 4: Simplify right side
    17,678.36x = 267,323,881.95
  5. Step 5: Solve for x
    x = 267,323,881.95/17,678.36
  6. Step 6: Final answer
    x = 15,121.53

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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.