Home / 15,090.98-20,825.38-8,376.66

Finding the Fourth Proportional to 15,090.98, 20,825.38 and 8,376.66

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Solution

The fourth proportional to 15,090.98, 20,825.38 and 8,376.66 is: 11,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.98 : 20,825.38 = 8,376.66 : x
  2. Step 2: Convert to fraction form
    15,090.98/20,825.38 = 8,376.66/x
  3. Step 3: Cross multiply
    15,090.98x = 20,825.38 × 8,376.66
  4. Step 4: Simplify right side
    15,090.98x = 174,447,085.75
  5. Step 5: Solve for x
    x = 174,447,085.75/15,090.98
  6. Step 6: Final answer
    x = 11,559.70

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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.