Home / 12,530.08-17,291.28-6,940.96

Finding the Fourth Proportional to 12,530.08, 17,291.28 and 6,940.96

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Solution

The fourth proportional to 12,530.08, 17,291.28 and 6,940.96 is: 9,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.08 : 17,291.28 = 6,940.96 : x
  2. Step 2: Convert to fraction form
    12,530.08/17,291.28 = 6,940.96/x
  3. Step 3: Cross multiply
    12,530.08x = 17,291.28 × 6,940.96
  4. Step 4: Simplify right side
    12,530.08x = 120,018,082.83
  5. Step 5: Solve for x
    x = 120,018,082.83/12,530.08
  6. Step 6: Final answer
    x = 9,578.40

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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.