Home / 11,316.21-15,616.40-6,280.53

Finding the Fourth Proportional to 11,316.21, 15,616.40 and 6,280.53

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Solution

The fourth proportional to 11,316.21, 15,616.40 and 6,280.53 is: 8,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.21 : 15,616.40 = 6,280.53 : x
  2. Step 2: Convert to fraction form
    11,316.21/15,616.40 = 6,280.53/x
  3. Step 3: Cross multiply
    11,316.21x = 15,616.40 × 6,280.53
  4. Step 4: Simplify right side
    11,316.21x = 98,079,268.69
  5. Step 5: Solve for x
    x = 98,079,268.69/11,316.21
  6. Step 6: Final answer
    x = 8,667.15

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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.