Home / 10,971.13-15,148.47-10,949.26

Finding the Fourth Proportional to 10,971.13, 15,148.47 and 10,949.26

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Solution

The fourth proportional to 10,971.13, 15,148.47 and 10,949.26 is: 15,118.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.13 : 15,148.47 = 10,949.26 : x
  2. Step 2: Convert to fraction form
    10,971.13/15,148.47 = 10,949.26/x
  3. Step 3: Cross multiply
    10,971.13x = 15,148.47 × 10,949.26
  4. Step 4: Simplify right side
    10,971.13x = 165,864,536.63
  5. Step 5: Solve for x
    x = 165,864,536.63/10,971.13
  6. Step 6: Final answer
    x = 15,118.27

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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.