Home / 11,389.93-15,718.19-6,354.48

Finding the Fourth Proportional to 11,389.93, 15,718.19 and 6,354.48

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Solution

The fourth proportional to 11,389.93, 15,718.19 and 6,354.48 is: 8,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.93 : 15,718.19 = 6,354.48 : x
  2. Step 2: Convert to fraction form
    11,389.93/15,718.19 = 6,354.48/x
  3. Step 3: Cross multiply
    11,389.93x = 15,718.19 × 6,354.48
  4. Step 4: Simplify right side
    11,389.93x = 99,880,923.99
  5. Step 5: Solve for x
    x = 99,880,923.99/11,389.93
  6. Step 6: Final answer
    x = 8,769.23

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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.