Home / 12,938.76-17,853.24-7,632.84

Finding the Fourth Proportional to 12,938.76, 17,853.24 and 7,632.84

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Solution

The fourth proportional to 12,938.76, 17,853.24 and 7,632.84 is: 10,531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938.76 : 17,853.24 = 7,632.84 : x
  2. Step 2: Convert to fraction form
    12,938.76/17,853.24 = 7,632.84/x
  3. Step 3: Cross multiply
    12,938.76x = 17,853.24 × 7,632.84
  4. Step 4: Simplify right side
    12,938.76x = 136,270,924.40
  5. Step 5: Solve for x
    x = 136,270,924.40/12,938.76
  6. Step 6: Final answer
    x = 10,531.99

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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.