Home / 11,280.12-15,567.36-6,803.60

Finding the Fourth Proportional to 11,280.12, 15,567.36 and 6,803.60

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Solution

The fourth proportional to 11,280.12, 15,567.36 and 6,803.60 is: 9,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.12 : 15,567.36 = 6,803.60 : x
  2. Step 2: Convert to fraction form
    11,280.12/15,567.36 = 6,803.60/x
  3. Step 3: Cross multiply
    11,280.12x = 15,567.36 × 6,803.60
  4. Step 4: Simplify right side
    11,280.12x = 105,914,012.66
  5. Step 5: Solve for x
    x = 105,914,012.66/11,280.12
  6. Step 6: Final answer
    x = 9,389.44

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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.