Home / 10,130.78-15,196.17-4,287.44

Finding the Fourth Proportional to 10,130.78, 15,196.17 and 4,287.44

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Solution

The fourth proportional to 10,130.78, 15,196.17 and 4,287.44 is: 6,431.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.78 : 15,196.17 = 4,287.44 : x
  2. Step 2: Convert to fraction form
    10,130.78/15,196.17 = 4,287.44/x
  3. Step 3: Cross multiply
    10,130.78x = 15,196.17 × 4,287.44
  4. Step 4: Simplify right side
    10,130.78x = 65,152,667.10
  5. Step 5: Solve for x
    x = 65,152,667.10/10,130.78
  6. Step 6: Final answer
    x = 6,431.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.