Home / 8,937.23-12,323.99-6,431.28

Finding the Fourth Proportional to 8,937.23, 12,323.99 and 6,431.28

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Solution

The fourth proportional to 8,937.23, 12,323.99 and 6,431.28 is: 8,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.23 : 12,323.99 = 6,431.28 : x
  2. Step 2: Convert to fraction form
    8,937.23/12,323.99 = 6,431.28/x
  3. Step 3: Cross multiply
    8,937.23x = 12,323.99 × 6,431.28
  4. Step 4: Simplify right side
    8,937.23x = 79,258,998.25
  5. Step 5: Solve for x
    x = 79,258,998.25/8,937.23
  6. Step 6: Final answer
    x = 8,868.41

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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.