Home / 8,679.51-11,980.26-5,095.40

Finding the Fourth Proportional to 8,679.51, 11,980.26 and 5,095.40

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Solution

The fourth proportional to 8,679.51, 11,980.26 and 5,095.40 is: 7,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.51 : 11,980.26 = 5,095.40 : x
  2. Step 2: Convert to fraction form
    8,679.51/11,980.26 = 5,095.40/x
  3. Step 3: Cross multiply
    8,679.51x = 11,980.26 × 5,095.40
  4. Step 4: Simplify right side
    8,679.51x = 61,044,156.90
  5. Step 5: Solve for x
    x = 61,044,156.90/8,679.51
  6. Step 6: Final answer
    x = 7,033.13

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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.