Home / 7,520.48-10,378.28-4,535.72

Finding the Fourth Proportional to 7,520.48, 10,378.28 and 4,535.72

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Solution

The fourth proportional to 7,520.48, 10,378.28 and 4,535.72 is: 6,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.48 : 10,378.28 = 4,535.72 : x
  2. Step 2: Convert to fraction form
    7,520.48/10,378.28 = 4,535.72/x
  3. Step 3: Cross multiply
    7,520.48x = 10,378.28 × 4,535.72
  4. Step 4: Simplify right side
    7,520.48x = 47,072,972.16
  5. Step 5: Solve for x
    x = 47,072,972.16/7,520.48
  6. Step 6: Final answer
    x = 6,259.30

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Double scale
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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.