Home / 10,975.08-15,147.04-7,201.46

Finding the Fourth Proportional to 10,975.08, 15,147.04 and 7,201.46

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Solution

The fourth proportional to 10,975.08, 15,147.04 and 7,201.46 is: 9,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.08 : 15,147.04 = 7,201.46 : x
  2. Step 2: Convert to fraction form
    10,975.08/15,147.04 = 7,201.46/x
  3. Step 3: Cross multiply
    10,975.08x = 15,147.04 × 7,201.46
  4. Step 4: Simplify right side
    10,975.08x = 109,080,802.68
  5. Step 5: Solve for x
    x = 109,080,802.68/10,975.08
  6. Step 6: Final answer
    x = 9,938.95

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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.