Home / 8,708.91-12,018.75-5,124.06

Finding the Fourth Proportional to 8,708.91, 12,018.75 and 5,124.06

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Solution

The fourth proportional to 8,708.91, 12,018.75 and 5,124.06 is: 7,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.91 : 12,018.75 = 5,124.06 : x
  2. Step 2: Convert to fraction form
    8,708.91/12,018.75 = 5,124.06/x
  3. Step 3: Cross multiply
    8,708.91x = 12,018.75 × 5,124.06
  4. Step 4: Simplify right side
    8,708.91x = 61,584,796.13
  5. Step 5: Solve for x
    x = 61,584,796.13/8,708.91
  6. Step 6: Final answer
    x = 7,071.47

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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.