Home / 9,008.42-12,431.21-5,028.75

Finding the Fourth Proportional to 9,008.42, 12,431.21 and 5,028.75

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Solution

The fourth proportional to 9,008.42, 12,431.21 and 5,028.75 is: 6,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.42 : 12,431.21 = 5,028.75 : x
  2. Step 2: Convert to fraction form
    9,008.42/12,431.21 = 5,028.75/x
  3. Step 3: Cross multiply
    9,008.42x = 12,431.21 × 5,028.75
  4. Step 4: Simplify right side
    9,008.42x = 62,513,422.14
  5. Step 5: Solve for x
    x = 62,513,422.14/9,008.42
  6. Step 6: Final answer
    x = 6,939.45

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Half scale
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Double scale
Find fourth proportional to 9,009.42, 12,432.58 and 5,029.75
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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.