Home / 7,650.02-11,478.32-4,142.53

Finding the Fourth Proportional to 7,650.02, 11,478.32 and 4,142.53

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Solution

The fourth proportional to 7,650.02, 11,478.32 and 4,142.53 is: 6,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.02 : 11,478.32 = 4,142.53 : x
  2. Step 2: Convert to fraction form
    7,650.02/11,478.32 = 4,142.53/x
  3. Step 3: Cross multiply
    7,650.02x = 11,478.32 × 4,142.53
  4. Step 4: Simplify right side
    7,650.02x = 47,549,235.54
  5. Step 5: Solve for x
    x = 47,549,235.54/7,650.02
  6. Step 6: Final answer
    x = 6,215.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.