Home / 7,578.72-10,458.65-4,392.63

Finding the Fourth Proportional to 7,578.72, 10,458.65 and 4,392.63

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Solution

The fourth proportional to 7,578.72, 10,458.65 and 4,392.63 is: 6,061.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.72 : 10,458.65 = 4,392.63 : x
  2. Step 2: Convert to fraction form
    7,578.72/10,458.65 = 4,392.63/x
  3. Step 3: Cross multiply
    7,578.72x = 10,458.65 × 4,392.63
  4. Step 4: Simplify right side
    7,578.72x = 45,940,990.73
  5. Step 5: Solve for x
    x = 45,940,990.73/7,578.72
  6. Step 6: Final answer
    x = 6,061.84

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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.