Home / 15,104.81-20,852.21-9,442.70

Finding the Fourth Proportional to 15,104.81, 20,852.21 and 9,442.70

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Solution

The fourth proportional to 15,104.81, 20,852.21 and 9,442.70 is: 13,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.81 : 20,852.21 = 9,442.70 : x
  2. Step 2: Convert to fraction form
    15,104.81/20,852.21 = 9,442.70/x
  3. Step 3: Cross multiply
    15,104.81x = 20,852.21 × 9,442.70
  4. Step 4: Simplify right side
    15,104.81x = 196,901,116.15
  5. Step 5: Solve for x
    x = 196,901,116.15/15,104.81
  6. Step 6: Final answer
    x = 13,035.66

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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.