Home / 7,532.40-10,387.94-5,141.28

Finding the Fourth Proportional to 7,532.40, 10,387.94 and 5,141.28

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Solution

The fourth proportional to 7,532.40, 10,387.94 and 5,141.28 is: 7,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,532.40 : 10,387.94 = 5,141.28 : x
  2. Step 2: Convert to fraction form
    7,532.40/10,387.94 = 5,141.28/x
  3. Step 3: Cross multiply
    7,532.40x = 10,387.94 × 5,141.28
  4. Step 4: Simplify right side
    7,532.40x = 53,407,282.46
  5. Step 5: Solve for x
    x = 53,407,282.46/7,532.40
  6. Step 6: Final answer
    x = 7,090.34

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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.