Home / 8,856.39-12,214.47-5,317.08

Finding the Fourth Proportional to 8,856.39, 12,214.47 and 5,317.08

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Solution

The fourth proportional to 8,856.39, 12,214.47 and 5,317.08 is: 7,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.39 : 12,214.47 = 5,317.08 : x
  2. Step 2: Convert to fraction form
    8,856.39/12,214.47 = 5,317.08/x
  3. Step 3: Cross multiply
    8,856.39x = 12,214.47 × 5,317.08
  4. Step 4: Simplify right side
    8,856.39x = 64,945,314.15
  5. Step 5: Solve for x
    x = 64,945,314.15/8,856.39
  6. Step 6: Final answer
    x = 7,333.16

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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.