Home / 10,668.80-15,963.10-10,106.25

Finding the Fourth Proportional to 10,668.80, 15,963.10 and 10,106.25

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Solution

The fourth proportional to 10,668.80, 15,963.10 and 10,106.25 is: 15,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.80 : 15,963.10 = 10,106.25 : x
  2. Step 2: Convert to fraction form
    10,668.80/15,963.10 = 10,106.25/x
  3. Step 3: Cross multiply
    10,668.80x = 15,963.10 × 10,106.25
  4. Step 4: Simplify right side
    10,668.80x = 161,327,054.11
  5. Step 5: Solve for x
    x = 161,327,054.11/10,668.80
  6. Step 6: Final answer
    x = 15,121.39

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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.