Home / 8,887.28-12,268.36-5,303.48

Finding the Fourth Proportional to 8,887.28, 12,268.36 and 5,303.48

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Solution

The fourth proportional to 8,887.28, 12,268.36 and 5,303.48 is: 7,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.28 : 12,268.36 = 5,303.48 : x
  2. Step 2: Convert to fraction form
    8,887.28/12,268.36 = 5,303.48/x
  3. Step 3: Cross multiply
    8,887.28x = 12,268.36 × 5,303.48
  4. Step 4: Simplify right side
    8,887.28x = 65,064,957.96
  5. Step 5: Solve for x
    x = 65,064,957.96/8,887.28
  6. Step 6: Final answer
    x = 7,321.13

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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.