Home / 7,520.20-10,376.50-4,377.40

Finding the Fourth Proportional to 7,520.20, 10,376.50 and 4,377.40

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Solution

The fourth proportional to 7,520.20, 10,376.50 and 4,377.40 is: 6,040.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.20 : 10,376.50 = 4,377.40 : x
  2. Step 2: Convert to fraction form
    7,520.20/10,376.50 = 4,377.40/x
  3. Step 3: Cross multiply
    7,520.20x = 10,376.50 × 4,377.40
  4. Step 4: Simplify right side
    7,520.20x = 45,422,091.10
  5. Step 5: Solve for x
    x = 45,422,091.10/7,520.20
  6. Step 6: Final answer
    x = 6,040.01

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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.