Home / 8,291.52-12,424.32-4,783.68

Finding the Fourth Proportional to 8,291.52, 12,424.32 and 4,783.68

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Solution

The fourth proportional to 8,291.52, 12,424.32 and 4,783.68 is: 7,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.52 : 12,424.32 = 4,783.68 : x
  2. Step 2: Convert to fraction form
    8,291.52/12,424.32 = 4,783.68/x
  3. Step 3: Cross multiply
    8,291.52x = 12,424.32 × 4,783.68
  4. Step 4: Simplify right side
    8,291.52x = 59,433,971.10
  5. Step 5: Solve for x
    x = 59,433,971.10/8,291.52
  6. Step 6: Final answer
    x = 7,168.04

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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.