Home / 8,715.51-13,079.67-4,272.26

Finding the Fourth Proportional to 8,715.51, 13,079.67 and 4,272.26

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Solution

The fourth proportional to 8,715.51, 13,079.67 and 4,272.26 is: 6,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.51 : 13,079.67 = 4,272.26 : x
  2. Step 2: Convert to fraction form
    8,715.51/13,079.67 = 4,272.26/x
  3. Step 3: Cross multiply
    8,715.51x = 13,079.67 × 4,272.26
  4. Step 4: Simplify right side
    8,715.51x = 55,879,685.56
  5. Step 5: Solve for x
    x = 55,879,685.56/8,715.51
  6. Step 6: Final answer
    x = 6,411.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.