Home / 15,460.49-23,171.74-7,128.95

Finding the Fourth Proportional to 15,460.49, 23,171.74 and 7,128.95

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Solution

The fourth proportional to 15,460.49, 23,171.74 and 7,128.95 is: 10,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.49 : 23,171.74 = 7,128.95 : x
  2. Step 2: Convert to fraction form
    15,460.49/23,171.74 = 7,128.95/x
  3. Step 3: Cross multiply
    15,460.49x = 23,171.74 × 7,128.95
  4. Step 4: Simplify right side
    15,460.49x = 165,190,042.19
  5. Step 5: Solve for x
    x = 165,190,042.19/15,460.49
  6. Step 6: Final answer
    x = 10,684.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.