Home / 7,501.20-10,347.84-5,145.60

Finding the Fourth Proportional to 7,501.20, 10,347.84 and 5,145.60

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Solution

The fourth proportional to 7,501.20, 10,347.84 and 5,145.60 is: 7,098.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.20 : 10,347.84 = 5,145.60 : x
  2. Step 2: Convert to fraction form
    7,501.20/10,347.84 = 5,145.60/x
  3. Step 3: Cross multiply
    7,501.20x = 10,347.84 × 5,145.60
  4. Step 4: Simplify right side
    7,501.20x = 53,245,845.50
  5. Step 5: Solve for x
    x = 53,245,845.50/7,501.20
  6. Step 6: Final answer
    x = 7,098.31

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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.