Home / 8,696.12-12,000.42-5,159.25

Finding the Fourth Proportional to 8,696.12, 12,000.42 and 5,159.25

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Solution

The fourth proportional to 8,696.12, 12,000.42 and 5,159.25 is: 7,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.12 : 12,000.42 = 5,159.25 : x
  2. Step 2: Convert to fraction form
    8,696.12/12,000.42 = 5,159.25/x
  3. Step 3: Cross multiply
    8,696.12x = 12,000.42 × 5,159.25
  4. Step 4: Simplify right side
    8,696.12x = 61,913,166.89
  5. Step 5: Solve for x
    x = 61,913,166.89/8,696.12
  6. Step 6: Final answer
    x = 7,119.64

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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.