Home / 8,364.36-12,547.91-3,432.68

Finding the Fourth Proportional to 8,364.36, 12,547.91 and 3,432.68

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Solution

The fourth proportional to 8,364.36, 12,547.91 and 3,432.68 is: 5,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.36 : 12,547.91 = 3,432.68 : x
  2. Step 2: Convert to fraction form
    8,364.36/12,547.91 = 3,432.68/x
  3. Step 3: Cross multiply
    8,364.36x = 12,547.91 × 3,432.68
  4. Step 4: Simplify right side
    8,364.36x = 43,072,952.60
  5. Step 5: Solve for x
    x = 43,072,952.60/8,364.36
  6. Step 6: Final answer
    x = 5,149.58

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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.