Home / 7,557.80-11,314.30-5,618.60

Finding the Fourth Proportional to 7,557.80, 11,314.30 and 5,618.60

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Solution

The fourth proportional to 7,557.80, 11,314.30 and 5,618.60 is: 8,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557.80 : 11,314.30 = 5,618.60 : x
  2. Step 2: Convert to fraction form
    7,557.80/11,314.30 = 5,618.60/x
  3. Step 3: Cross multiply
    7,557.80x = 11,314.30 × 5,618.60
  4. Step 4: Simplify right side
    7,557.80x = 63,570,525.98
  5. Step 5: Solve for x
    x = 63,570,525.98/7,557.80
  6. Step 6: Final answer
    x = 8,411.25

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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.