Home / 10,132.28-13,988.36-7,723.34

Finding the Fourth Proportional to 10,132.28, 13,988.36 and 7,723.34

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Solution

The fourth proportional to 10,132.28, 13,988.36 and 7,723.34 is: 10,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132.28 : 13,988.36 = 7,723.34 : x
  2. Step 2: Convert to fraction form
    10,132.28/13,988.36 = 7,723.34/x
  3. Step 3: Cross multiply
    10,132.28x = 13,988.36 × 7,723.34
  4. Step 4: Simplify right side
    10,132.28x = 108,036,860.32
  5. Step 5: Solve for x
    x = 108,036,860.32/10,132.28
  6. Step 6: Final answer
    x = 10,662.64

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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.