Home / 7,240.55-9,996.45-5,558.74

Finding the Fourth Proportional to 7,240.55, 9,996.45 and 5,558.74

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Solution

The fourth proportional to 7,240.55, 9,996.45 and 5,558.74 is: 7,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.55 : 9,996.45 = 5,558.74 : x
  2. Step 2: Convert to fraction form
    7,240.55/9,996.45 = 5,558.74/x
  3. Step 3: Cross multiply
    7,240.55x = 9,996.45 × 5,558.74
  4. Step 4: Simplify right side
    7,240.55x = 55,567,666.47
  5. Step 5: Solve for x
    x = 55,567,666.47/7,240.55
  6. Step 6: Final answer
    x = 7,674.51

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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.