Home / 14,212.72-19,618.96-10,686.18

Finding the Fourth Proportional to 14,212.72, 19,618.96 and 10,686.18

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Solution

The fourth proportional to 14,212.72, 19,618.96 and 10,686.18 is: 14,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.72 : 19,618.96 = 10,686.18 : x
  2. Step 2: Convert to fraction form
    14,212.72/19,618.96 = 10,686.18/x
  3. Step 3: Cross multiply
    14,212.72x = 19,618.96 × 10,686.18
  4. Step 4: Simplify right side
    14,212.72x = 209,651,737.97
  5. Step 5: Solve for x
    x = 209,651,737.97/14,212.72
  6. Step 6: Final answer
    x = 14,750.99

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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.