Home / 7,938.15-10,955.08-4,401.28

Finding the Fourth Proportional to 7,938.15, 10,955.08 and 4,401.28

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Solution

The fourth proportional to 7,938.15, 10,955.08 and 4,401.28 is: 6,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.15 : 10,955.08 = 4,401.28 : x
  2. Step 2: Convert to fraction form
    7,938.15/10,955.08 = 4,401.28/x
  3. Step 3: Cross multiply
    7,938.15x = 10,955.08 × 4,401.28
  4. Step 4: Simplify right side
    7,938.15x = 48,216,374.50
  5. Step 5: Solve for x
    x = 48,216,374.50/7,938.15
  6. Step 6: Final answer
    x = 6,074.01

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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.