Home / 15,295.16-21,107.97-8,580.60

Finding the Fourth Proportional to 15,295.16, 21,107.97 and 8,580.60

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Solution

The fourth proportional to 15,295.16, 21,107.97 and 8,580.60 is: 11,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.16 : 21,107.97 = 8,580.60 : x
  2. Step 2: Convert to fraction form
    15,295.16/21,107.97 = 8,580.60/x
  3. Step 3: Cross multiply
    15,295.16x = 21,107.97 × 8,580.60
  4. Step 4: Simplify right side
    15,295.16x = 181,119,047.38
  5. Step 5: Solve for x
    x = 181,119,047.38/15,295.16
  6. Step 6: Final answer
    x = 11,841.59

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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.