Home / 18,343.99-25,314.49-10,387.77

Finding the Fourth Proportional to 18,343.99, 25,314.49 and 10,387.77

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Solution

The fourth proportional to 18,343.99, 25,314.49 and 10,387.77 is: 14,335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.99 : 25,314.49 = 10,387.77 : x
  2. Step 2: Convert to fraction form
    18,343.99/25,314.49 = 10,387.77/x
  3. Step 3: Cross multiply
    18,343.99x = 25,314.49 × 10,387.77
  4. Step 4: Simplify right side
    18,343.99x = 262,961,099.79
  5. Step 5: Solve for x
    x = 262,961,099.79/18,343.99
  6. Step 6: Final answer
    x = 14,335.00

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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.