Home / 9,114.80-12,574.32-5,529.20

Finding the Fourth Proportional to 9,114.80, 12,574.32 and 5,529.20

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Solution

The fourth proportional to 9,114.80, 12,574.32 and 5,529.20 is: 7,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.80 : 12,574.32 = 5,529.20 : x
  2. Step 2: Convert to fraction form
    9,114.80/12,574.32 = 5,529.20/x
  3. Step 3: Cross multiply
    9,114.80x = 12,574.32 × 5,529.20
  4. Step 4: Simplify right side
    9,114.80x = 69,525,930.14
  5. Step 5: Solve for x
    x = 69,525,930.14/9,114.80
  6. Step 6: Final answer
    x = 7,627.81

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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.