Home / 10,685.36-14,721.66-7,452.09

Finding the Fourth Proportional to 10,685.36, 14,721.66 and 7,452.09

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Solution

The fourth proportional to 10,685.36, 14,721.66 and 7,452.09 is: 10,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.36 : 14,721.66 = 7,452.09 : x
  2. Step 2: Convert to fraction form
    10,685.36/14,721.66 = 7,452.09/x
  3. Step 3: Cross multiply
    10,685.36x = 14,721.66 × 7,452.09
  4. Step 4: Simplify right side
    10,685.36x = 109,707,135.27
  5. Step 5: Solve for x
    x = 109,707,135.27/10,685.36
  6. Step 6: Final answer
    x = 10,267.05

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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.