Home / 12,531.88-18,795.47-6,290.22

Finding the Fourth Proportional to 12,531.88, 18,795.47 and 6,290.22

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Solution

The fourth proportional to 12,531.88, 18,795.47 and 6,290.22 is: 9,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.88 : 18,795.47 = 6,290.22 : x
  2. Step 2: Convert to fraction form
    12,531.88/18,795.47 = 6,290.22/x
  3. Step 3: Cross multiply
    12,531.88x = 18,795.47 × 6,290.22
  4. Step 4: Simplify right side
    12,531.88x = 118,227,641.30
  5. Step 5: Solve for x
    x = 118,227,641.30/12,531.88
  6. Step 6: Final answer
    x = 9,434.15

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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.