Home / 8,716.32-12,030.12-5,181.48

Finding the Fourth Proportional to 8,716.32, 12,030.12 and 5,181.48

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Solution

The fourth proportional to 8,716.32, 12,030.12 and 5,181.48 is: 7,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.32 : 12,030.12 = 5,181.48 : x
  2. Step 2: Convert to fraction form
    8,716.32/12,030.12 = 5,181.48/x
  3. Step 3: Cross multiply
    8,716.32x = 12,030.12 × 5,181.48
  4. Step 4: Simplify right side
    8,716.32x = 62,333,826.18
  5. Step 5: Solve for x
    x = 62,333,826.18/8,716.32
  6. Step 6: Final answer
    x = 7,151.39

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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.