Home / 10,531.31-15,794.24-3,133.80

Finding the Fourth Proportional to 10,531.31, 15,794.24 and 3,133.80

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Solution

The fourth proportional to 10,531.31, 15,794.24 and 3,133.80 is: 4,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.31 : 15,794.24 = 3,133.80 : x
  2. Step 2: Convert to fraction form
    10,531.31/15,794.24 = 3,133.80/x
  3. Step 3: Cross multiply
    10,531.31x = 15,794.24 × 3,133.80
  4. Step 4: Simplify right side
    10,531.31x = 49,495,973.64
  5. Step 5: Solve for x
    x = 49,495,973.64/10,531.31
  6. Step 6: Final answer
    x = 4,699.89

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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.