Home / 19,418.20-26,803.71-13,457.71

Finding the Fourth Proportional to 19,418.20, 26,803.71 and 13,457.71

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Solution

The fourth proportional to 19,418.20, 26,803.71 and 13,457.71 is: 18,576.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.20 : 26,803.71 = 13,457.71 : x
  2. Step 2: Convert to fraction form
    19,418.20/26,803.71 = 13,457.71/x
  3. Step 3: Cross multiply
    19,418.20x = 26,803.71 × 13,457.71
  4. Step 4: Simplify right side
    19,418.20x = 360,716,589.61
  5. Step 5: Solve for x
    x = 360,716,589.61/19,418.20
  6. Step 6: Final answer
    x = 18,576.21

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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.