Home / 7,424.79-10,247.90-4,629.75

Finding the Fourth Proportional to 7,424.79, 10,247.90 and 4,629.75

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Solution

The fourth proportional to 7,424.79, 10,247.90 and 4,629.75 is: 6,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.79 : 10,247.90 = 4,629.75 : x
  2. Step 2: Convert to fraction form
    7,424.79/10,247.90 = 4,629.75/x
  3. Step 3: Cross multiply
    7,424.79x = 10,247.90 × 4,629.75
  4. Step 4: Simplify right side
    7,424.79x = 47,445,191.88
  5. Step 5: Solve for x
    x = 47,445,191.88/7,424.79
  6. Step 6: Final answer
    x = 6,390.11

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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.