Home / 7,964.08-10,985.34-5,135.08

Finding the Fourth Proportional to 7,964.08, 10,985.34 and 5,135.08

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Solution

The fourth proportional to 7,964.08, 10,985.34 and 5,135.08 is: 7,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.08 : 10,985.34 = 5,135.08 : x
  2. Step 2: Convert to fraction form
    7,964.08/10,985.34 = 5,135.08/x
  3. Step 3: Cross multiply
    7,964.08x = 10,985.34 × 5,135.08
  4. Step 4: Simplify right side
    7,964.08x = 56,410,599.73
  5. Step 5: Solve for x
    x = 56,410,599.73/7,964.08
  6. Step 6: Final answer
    x = 7,083.13

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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.