Home / 11,319.80-15,621.18-6,284.01

Finding the Fourth Proportional to 11,319.80, 15,621.18 and 6,284.01

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Solution

The fourth proportional to 11,319.80, 15,621.18 and 6,284.01 is: 8,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.80 : 15,621.18 = 6,284.01 : x
  2. Step 2: Convert to fraction form
    11,319.80/15,621.18 = 6,284.01/x
  3. Step 3: Cross multiply
    11,319.80x = 15,621.18 × 6,284.01
  4. Step 4: Simplify right side
    11,319.80x = 98,163,651.33
  5. Step 5: Solve for x
    x = 98,163,651.33/11,319.80
  6. Step 6: Final answer
    x = 8,671.85

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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.