Home / 9,011.60-13,525.40-5,309.20

Finding the Fourth Proportional to 9,011.60, 13,525.40 and 5,309.20

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Solution

The fourth proportional to 9,011.60, 13,525.40 and 5,309.20 is: 7,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.60 : 13,525.40 = 5,309.20 : x
  2. Step 2: Convert to fraction form
    9,011.60/13,525.40 = 5,309.20/x
  3. Step 3: Cross multiply
    9,011.60x = 13,525.40 × 5,309.20
  4. Step 4: Simplify right side
    9,011.60x = 71,809,053.68
  5. Step 5: Solve for x
    x = 71,809,053.68/9,011.60
  6. Step 6: Final answer
    x = 7,968.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.