Home / 19,551.69-26,990.75-13,898.30

Finding the Fourth Proportional to 19,551.69, 26,990.75 and 13,898.30

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Solution

The fourth proportional to 19,551.69, 26,990.75 and 13,898.30 is: 19,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.69 : 26,990.75 = 13,898.30 : x
  2. Step 2: Convert to fraction form
    19,551.69/26,990.75 = 13,898.30/x
  3. Step 3: Cross multiply
    19,551.69x = 26,990.75 × 13,898.30
  4. Step 4: Simplify right side
    19,551.69x = 375,125,440.52
  5. Step 5: Solve for x
    x = 375,125,440.52/19,551.69
  6. Step 6: Final answer
    x = 19,186.34

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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.