Home / 7,431.03-10,253.03-4,287.21

Finding the Fourth Proportional to 7,431.03, 10,253.03 and 4,287.21

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Solution

The fourth proportional to 7,431.03, 10,253.03 and 4,287.21 is: 5,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.03 : 10,253.03 = 4,287.21 : x
  2. Step 2: Convert to fraction form
    7,431.03/10,253.03 = 4,287.21/x
  3. Step 3: Cross multiply
    7,431.03x = 10,253.03 × 4,287.21
  4. Step 4: Simplify right side
    7,431.03x = 43,956,871.31
  5. Step 5: Solve for x
    x = 43,956,871.31/7,431.03
  6. Step 6: Final answer
    x = 5,915.31

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Half scale
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Double scale
Find fourth proportional to 7,432.03, 10,254.40 and 4,288.21
Similar ratio
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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.