Home / 10,665.36-16,015.32-6,587.28

Finding the Fourth Proportional to 10,665.36, 16,015.32 and 6,587.28

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Solution

The fourth proportional to 10,665.36, 16,015.32 and 6,587.28 is: 9,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.36 : 16,015.32 = 6,587.28 : x
  2. Step 2: Convert to fraction form
    10,665.36/16,015.32 = 6,587.28/x
  3. Step 3: Cross multiply
    10,665.36x = 16,015.32 × 6,587.28
  4. Step 4: Simplify right side
    10,665.36x = 105,497,397.13
  5. Step 5: Solve for x
    x = 105,497,397.13/10,665.36
  6. Step 6: Final answer
    x = 9,891.59

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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.