Home / 14,380.17-19,810.68-13,715.87

Finding the Fourth Proportional to 14,380.17, 19,810.68 and 13,715.87

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Solution

The fourth proportional to 14,380.17, 19,810.68 and 13,715.87 is: 18,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.17 : 19,810.68 = 13,715.87 : x
  2. Step 2: Convert to fraction form
    14,380.17/19,810.68 = 13,715.87/x
  3. Step 3: Cross multiply
    14,380.17x = 19,810.68 × 13,715.87
  4. Step 4: Simplify right side
    14,380.17x = 271,720,561.00
  5. Step 5: Solve for x
    x = 271,720,561.00/14,380.17
  6. Step 6: Final answer
    x = 18,895.51

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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.