Home / 7,356.60-10,152.05-4,212.78

Finding the Fourth Proportional to 7,356.60, 10,152.05 and 4,212.78

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Solution

The fourth proportional to 7,356.60, 10,152.05 and 4,212.78 is: 5,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.60 : 10,152.05 = 4,212.78 : x
  2. Step 2: Convert to fraction form
    7,356.60/10,152.05 = 4,212.78/x
  3. Step 3: Cross multiply
    7,356.60x = 10,152.05 × 4,212.78
  4. Step 4: Simplify right side
    7,356.60x = 42,768,353.20
  5. Step 5: Solve for x
    x = 42,768,353.20/7,356.60
  6. Step 6: Final answer
    x = 5,813.60

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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.