Home / 7,889.04-10,876.77-6,467.58

Finding the Fourth Proportional to 7,889.04, 10,876.77 and 6,467.58

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Solution

The fourth proportional to 7,889.04, 10,876.77 and 6,467.58 is: 8,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.04 : 10,876.77 = 6,467.58 : x
  2. Step 2: Convert to fraction form
    7,889.04/10,876.77 = 6,467.58/x
  3. Step 3: Cross multiply
    7,889.04x = 10,876.77 × 6,467.58
  4. Step 4: Simplify right side
    7,889.04x = 70,346,380.12
  5. Step 5: Solve for x
    x = 70,346,380.12/7,889.04
  6. Step 6: Final answer
    x = 8,916.98

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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.