Home / 14,315.79-19,761.98-13,419.12

Finding the Fourth Proportional to 14,315.79, 19,761.98 and 13,419.12

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Solution

The fourth proportional to 14,315.79, 19,761.98 and 13,419.12 is: 18,524.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.79 : 19,761.98 = 13,419.12 : x
  2. Step 2: Convert to fraction form
    14,315.79/19,761.98 = 13,419.12/x
  3. Step 3: Cross multiply
    14,315.79x = 19,761.98 × 13,419.12
  4. Step 4: Simplify right side
    14,315.79x = 265,188,313.96
  5. Step 5: Solve for x
    x = 265,188,313.96/14,315.79
  6. Step 6: Final answer
    x = 18,524.18

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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.