Home / 14,248.79-19,557.99-13,639.85

Finding the Fourth Proportional to 14,248.79, 19,557.99 and 13,639.85

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Solution

The fourth proportional to 14,248.79, 19,557.99 and 13,639.85 is: 18,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.79 : 19,557.99 = 13,639.85 : x
  2. Step 2: Convert to fraction form
    14,248.79/19,557.99 = 13,639.85/x
  3. Step 3: Cross multiply
    14,248.79x = 19,557.99 × 13,639.85
  4. Step 4: Simplify right side
    14,248.79x = 266,768,063.82
  5. Step 5: Solve for x
    x = 266,768,063.82/14,248.79
  6. Step 6: Final answer
    x = 18,722.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.