Home / 11,316.51-15,616.60-6,280.74

Finding the Fourth Proportional to 11,316.51, 15,616.60 and 6,280.74

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Solution

The fourth proportional to 11,316.51, 15,616.60 and 6,280.74 is: 8,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.51 : 15,616.60 = 6,280.74 : x
  2. Step 2: Convert to fraction form
    11,316.51/15,616.60 = 6,280.74/x
  3. Step 3: Cross multiply
    11,316.51x = 15,616.60 × 6,280.74
  4. Step 4: Simplify right side
    11,316.51x = 98,083,788.58
  5. Step 5: Solve for x
    x = 98,083,788.58/11,316.51
  6. Step 6: Final answer
    x = 8,667.32

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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.