Home / 8,665.08-11,959.38-5,130.06

Finding the Fourth Proportional to 8,665.08, 11,959.38 and 5,130.06

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Solution

The fourth proportional to 8,665.08, 11,959.38 and 5,130.06 is: 7,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.08 : 11,959.38 = 5,130.06 : x
  2. Step 2: Convert to fraction form
    8,665.08/11,959.38 = 5,130.06/x
  3. Step 3: Cross multiply
    8,665.08x = 11,959.38 × 5,130.06
  4. Step 4: Simplify right side
    8,665.08x = 61,352,336.96
  5. Step 5: Solve for x
    x = 61,352,336.96/8,665.08
  6. Step 6: Final answer
    x = 7,080.41

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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.