Home / 15,693.76-21,661-10,095.04

Finding the Fourth Proportional to 15,693.76, 21,661 and 10,095.04

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Solution

The fourth proportional to 15,693.76, 21,661 and 10,095.04 is: 13,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.76 : 21,661 = 10,095.04 : x
  2. Step 2: Convert to fraction form
    15,693.76/21,661 = 10,095.04/x
  3. Step 3: Cross multiply
    15,693.76x = 21,661 × 10,095.04
  4. Step 4: Simplify right side
    15,693.76x = 218,668,661.44
  5. Step 5: Solve for x
    x = 218,668,661.44/15,693.76
  6. Step 6: Final answer
    x = 13,933.48

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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.