Home / 12,702.13-17,529.56-7,666.26

Finding the Fourth Proportional to 12,702.13, 17,529.56 and 7,666.26

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Solution

The fourth proportional to 12,702.13, 17,529.56 and 7,666.26 is: 10,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.13 : 17,529.56 = 7,666.26 : x
  2. Step 2: Convert to fraction form
    12,702.13/17,529.56 = 7,666.26/x
  3. Step 3: Cross multiply
    12,702.13x = 17,529.56 × 7,666.26
  4. Step 4: Simplify right side
    12,702.13x = 134,386,164.65
  5. Step 5: Solve for x
    x = 134,386,164.65/12,702.13
  6. Step 6: Final answer
    x = 10,579.81

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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.