Home / 14,021.91-19,350.05-7,648.56

Finding the Fourth Proportional to 14,021.91, 19,350.05 and 7,648.56

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Solution

The fourth proportional to 14,021.91, 19,350.05 and 7,648.56 is: 10,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.91 : 19,350.05 = 7,648.56 : x
  2. Step 2: Convert to fraction form
    14,021.91/19,350.05 = 7,648.56/x
  3. Step 3: Cross multiply
    14,021.91x = 19,350.05 × 7,648.56
  4. Step 4: Simplify right side
    14,021.91x = 147,999,980.19
  5. Step 5: Solve for x
    x = 147,999,980.19/14,021.91
  6. Step 6: Final answer
    x = 10,554.91

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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.