Home / 11,547.50-17,322.75-4,152.78

Finding the Fourth Proportional to 11,547.50, 17,322.75 and 4,152.78

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Solution

The fourth proportional to 11,547.50, 17,322.75 and 4,152.78 is: 6,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.50 : 17,322.75 = 4,152.78 : x
  2. Step 2: Convert to fraction form
    11,547.50/17,322.75 = 4,152.78/x
  3. Step 3: Cross multiply
    11,547.50x = 17,322.75 × 4,152.78
  4. Step 4: Simplify right side
    11,547.50x = 71,937,569.75
  5. Step 5: Solve for x
    x = 71,937,569.75/11,547.50
  6. Step 6: Final answer
    x = 6,229.71

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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.