Home / 10,389.59-14,334.08-5,912.22

Finding the Fourth Proportional to 10,389.59, 14,334.08 and 5,912.22

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Solution

The fourth proportional to 10,389.59, 14,334.08 and 5,912.22 is: 8,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.59 : 14,334.08 = 5,912.22 : x
  2. Step 2: Convert to fraction form
    10,389.59/14,334.08 = 5,912.22/x
  3. Step 3: Cross multiply
    10,389.59x = 14,334.08 × 5,912.22
  4. Step 4: Simplify right side
    10,389.59x = 84,746,302.99
  5. Step 5: Solve for x
    x = 84,746,302.99/10,389.59
  6. Step 6: Final answer
    x = 8,156.85

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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.