Home / 15,106.17-20,848.17-9,141.15

Finding the Fourth Proportional to 15,106.17, 20,848.17 and 9,141.15

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Solution

The fourth proportional to 15,106.17, 20,848.17 and 9,141.15 is: 12,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.17 : 20,848.17 = 9,141.15 : x
  2. Step 2: Convert to fraction form
    15,106.17/20,848.17 = 9,141.15/x
  3. Step 3: Cross multiply
    15,106.17x = 20,848.17 × 9,141.15
  4. Step 4: Simplify right side
    15,106.17x = 190,576,249.20
  5. Step 5: Solve for x
    x = 190,576,249.20/15,106.17
  6. Step 6: Final answer
    x = 12,615.79

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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.