Home / 7,837.42-10,815.12-4,480.18

Finding the Fourth Proportional to 7,837.42, 10,815.12 and 4,480.18

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Solution

The fourth proportional to 7,837.42, 10,815.12 and 4,480.18 is: 6,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.42 : 10,815.12 = 4,480.18 : x
  2. Step 2: Convert to fraction form
    7,837.42/10,815.12 = 4,480.18/x
  3. Step 3: Cross multiply
    7,837.42x = 10,815.12 × 4,480.18
  4. Step 4: Simplify right side
    7,837.42x = 48,453,684.32
  5. Step 5: Solve for x
    x = 48,453,684.32/7,837.42
  6. Step 6: Final answer
    x = 6,182.35

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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.