Home / 12,702.08-17,530.17-7,324.72

Finding the Fourth Proportional to 12,702.08, 17,530.17 and 7,324.72

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Solution

The fourth proportional to 12,702.08, 17,530.17 and 7,324.72 is: 10,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.08 : 17,530.17 = 7,324.72 : x
  2. Step 2: Convert to fraction form
    12,702.08/17,530.17 = 7,324.72/x
  3. Step 3: Cross multiply
    12,702.08x = 17,530.17 × 7,324.72
  4. Step 4: Simplify right side
    12,702.08x = 128,403,642.99
  5. Step 5: Solve for x
    x = 128,403,642.99/12,702.08
  6. Step 6: Final answer
    x = 10,108.86

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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.