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Finding the Fourth Proportional to 8,708.93, 12,018.59 and 5,124.16

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Solution

The fourth proportional to 8,708.93, 12,018.59 and 5,124.16 is: 7,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.93 : 12,018.59 = 5,124.16 : x
  2. Step 2: Convert to fraction form
    8,708.93/12,018.59 = 5,124.16/x
  3. Step 3: Cross multiply
    8,708.93x = 12,018.59 × 5,124.16
  4. Step 4: Simplify right side
    8,708.93x = 61,585,178.13
  5. Step 5: Solve for x
    x = 61,585,178.13/8,708.93
  6. Step 6: Final answer
    x = 7,071.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.