Home / 11,398.10-15,727.01-6,919.35

Finding the Fourth Proportional to 11,398.10, 15,727.01 and 6,919.35

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Solution

The fourth proportional to 11,398.10, 15,727.01 and 6,919.35 is: 9,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,398.10 : 15,727.01 = 6,919.35 : x
  2. Step 2: Convert to fraction form
    11,398.10/15,727.01 = 6,919.35/x
  3. Step 3: Cross multiply
    11,398.10x = 15,727.01 × 6,919.35
  4. Step 4: Simplify right side
    11,398.10x = 108,820,652.05
  5. Step 5: Solve for x
    x = 108,820,652.05/11,398.10
  6. Step 6: Final answer
    x = 9,547.27

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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.