Home / 11,389.73-15,717.86-6,354.28

Finding the Fourth Proportional to 11,389.73, 15,717.86 and 6,354.28

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Solution

The fourth proportional to 11,389.73, 15,717.86 and 6,354.28 is: 8,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.73 : 15,717.86 = 6,354.28 : x
  2. Step 2: Convert to fraction form
    11,389.73/15,717.86 = 6,354.28/x
  3. Step 3: Cross multiply
    11,389.73x = 15,717.86 × 6,354.28
  4. Step 4: Simplify right side
    11,389.73x = 99,875,683.44
  5. Step 5: Solve for x
    x = 99,875,683.44/11,389.73
  6. Step 6: Final answer
    x = 8,768.92

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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.