Home / 15,971.42-22,040.57-8,703.47

Finding the Fourth Proportional to 15,971.42, 22,040.57 and 8,703.47

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Solution

The fourth proportional to 15,971.42, 22,040.57 and 8,703.47 is: 12,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.42 : 22,040.57 = 8,703.47 : x
  2. Step 2: Convert to fraction form
    15,971.42/22,040.57 = 8,703.47/x
  3. Step 3: Cross multiply
    15,971.42x = 22,040.57 × 8,703.47
  4. Step 4: Simplify right side
    15,971.42x = 191,829,516.64
  5. Step 5: Solve for x
    x = 191,829,516.64/15,971.42
  6. Step 6: Final answer
    x = 12,010.80

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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.