Home / 8,256.12-12,387.36-4,971.48

Finding the Fourth Proportional to 8,256.12, 12,387.36 and 4,971.48

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Solution

The fourth proportional to 8,256.12, 12,387.36 and 4,971.48 is: 7,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.12 : 12,387.36 = 4,971.48 : x
  2. Step 2: Convert to fraction form
    8,256.12/12,387.36 = 4,971.48/x
  3. Step 3: Cross multiply
    8,256.12x = 12,387.36 × 4,971.48
  4. Step 4: Simplify right side
    8,256.12x = 61,583,512.49
  5. Step 5: Solve for x
    x = 61,583,512.49/8,256.12
  6. Step 6: Final answer
    x = 7,459.13

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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.