Home / 7,924.60-10,935.12-4,387.72

Finding the Fourth Proportional to 7,924.60, 10,935.12 and 4,387.72

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Solution

The fourth proportional to 7,924.60, 10,935.12 and 4,387.72 is: 6,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.60 : 10,935.12 = 4,387.72 : x
  2. Step 2: Convert to fraction form
    7,924.60/10,935.12 = 4,387.72/x
  3. Step 3: Cross multiply
    7,924.60x = 10,935.12 × 4,387.72
  4. Step 4: Simplify right side
    7,924.60x = 47,980,244.73
  5. Step 5: Solve for x
    x = 47,980,244.73/7,924.60
  6. Step 6: Final answer
    x = 6,054.60

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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.