Home / 7,473.05-10,312.74-4,115.79

Finding the Fourth Proportional to 7,473.05, 10,312.74 and 4,115.79

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Solution

The fourth proportional to 7,473.05, 10,312.74 and 4,115.79 is: 5,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,473.05 : 10,312.74 = 4,115.79 : x
  2. Step 2: Convert to fraction form
    7,473.05/10,312.74 = 4,115.79/x
  3. Step 3: Cross multiply
    7,473.05x = 10,312.74 × 4,115.79
  4. Step 4: Simplify right side
    7,473.05x = 42,445,072.16
  5. Step 5: Solve for x
    x = 42,445,072.16/7,473.05
  6. Step 6: Final answer
    x = 5,679.76

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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.