Home / 7,872.24-10,863.96-4,888.32

Finding the Fourth Proportional to 7,872.24, 10,863.96 and 4,888.32

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Solution

The fourth proportional to 7,872.24, 10,863.96 and 4,888.32 is: 6,746.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.24 : 10,863.96 = 4,888.32 : x
  2. Step 2: Convert to fraction form
    7,872.24/10,863.96 = 4,888.32/x
  3. Step 3: Cross multiply
    7,872.24x = 10,863.96 × 4,888.32
  4. Step 4: Simplify right side
    7,872.24x = 53,106,512.95
  5. Step 5: Solve for x
    x = 53,106,512.95/7,872.24
  6. Step 6: Final answer
    x = 6,746.05

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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.