Home / 15,100.42-20,839.26-8,386.06

Finding the Fourth Proportional to 15,100.42, 20,839.26 and 8,386.06

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Solution

The fourth proportional to 15,100.42, 20,839.26 and 8,386.06 is: 11,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,100.42 : 20,839.26 = 8,386.06 : x
  2. Step 2: Convert to fraction form
    15,100.42/20,839.26 = 8,386.06/x
  3. Step 3: Cross multiply
    15,100.42x = 20,839.26 × 8,386.06
  4. Step 4: Simplify right side
    15,100.42x = 174,759,284.72
  5. Step 5: Solve for x
    x = 174,759,284.72/15,100.42
  6. Step 6: Final answer
    x = 11,573.14

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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.