Home / 7,642.66-10,547.31-4,286.55

Finding the Fourth Proportional to 7,642.66, 10,547.31 and 4,286.55

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Solution

The fourth proportional to 7,642.66, 10,547.31 and 4,286.55 is: 5,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.66 : 10,547.31 = 4,286.55 : x
  2. Step 2: Convert to fraction form
    7,642.66/10,547.31 = 4,286.55/x
  3. Step 3: Cross multiply
    7,642.66x = 10,547.31 × 4,286.55
  4. Step 4: Simplify right side
    7,642.66x = 45,211,571.68
  5. Step 5: Solve for x
    x = 45,211,571.68/7,642.66
  6. Step 6: Final answer
    x = 5,915.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.