Home / 7,938.65-10,955.77-4,401.78

Finding the Fourth Proportional to 7,938.65, 10,955.77 and 4,401.78

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Solution

The fourth proportional to 7,938.65, 10,955.77 and 4,401.78 is: 6,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.65 : 10,955.77 = 4,401.78 : x
  2. Step 2: Convert to fraction form
    7,938.65/10,955.77 = 4,401.78/x
  3. Step 3: Cross multiply
    7,938.65x = 10,955.77 × 4,401.78
  4. Step 4: Simplify right side
    7,938.65x = 48,224,878.27
  5. Step 5: Solve for x
    x = 48,224,878.27/7,938.65
  6. Step 6: Final answer
    x = 6,074.70

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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.