Home / 7,245.05-10,000.55-4,260.74

Finding the Fourth Proportional to 7,245.05, 10,000.55 and 4,260.74

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Solution

The fourth proportional to 7,245.05, 10,000.55 and 4,260.74 is: 5,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.05 : 10,000.55 = 4,260.74 : x
  2. Step 2: Convert to fraction form
    7,245.05/10,000.55 = 4,260.74/x
  3. Step 3: Cross multiply
    7,245.05x = 10,000.55 × 4,260.74
  4. Step 4: Simplify right side
    7,245.05x = 42,609,722.10
  5. Step 5: Solve for x
    x = 42,609,722.10/7,245.05
  6. Step 6: Final answer
    x = 5,881.22

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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.