Home / 11,320.42-15,621.32-6,284.18

Finding the Fourth Proportional to 11,320.42, 15,621.32 and 6,284.18

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Solution

The fourth proportional to 11,320.42, 15,621.32 and 6,284.18 is: 8,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.42 : 15,621.32 = 6,284.18 : x
  2. Step 2: Convert to fraction form
    11,320.42/15,621.32 = 6,284.18/x
  3. Step 3: Cross multiply
    11,320.42x = 15,621.32 × 6,284.18
  4. Step 4: Simplify right side
    11,320.42x = 98,167,186.72
  5. Step 5: Solve for x
    x = 98,167,186.72/11,320.42
  6. Step 6: Final answer
    x = 8,671.69

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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.