Home / 7,931.47-10,945.49-4,394.74

Finding the Fourth Proportional to 7,931.47, 10,945.49 and 4,394.74

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Solution

The fourth proportional to 7,931.47, 10,945.49 and 4,394.74 is: 6,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.47 : 10,945.49 = 4,394.74 : x
  2. Step 2: Convert to fraction form
    7,931.47/10,945.49 = 4,394.74/x
  3. Step 3: Cross multiply
    7,931.47x = 10,945.49 × 4,394.74
  4. Step 4: Simplify right side
    7,931.47x = 48,102,582.72
  5. Step 5: Solve for x
    x = 48,102,582.72/7,931.47
  6. Step 6: Final answer
    x = 6,064.78

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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.