Home / 14,721.77-20,323.57-11,357.03

Finding the Fourth Proportional to 14,721.77, 20,323.57 and 11,357.03

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Solution

The fourth proportional to 14,721.77, 20,323.57 and 11,357.03 is: 15,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.77 : 20,323.57 = 11,357.03 : x
  2. Step 2: Convert to fraction form
    14,721.77/20,323.57 = 11,357.03/x
  3. Step 3: Cross multiply
    14,721.77x = 20,323.57 × 11,357.03
  4. Step 4: Simplify right side
    14,721.77x = 230,815,394.20
  5. Step 5: Solve for x
    x = 230,815,394.20/14,721.77
  6. Step 6: Final answer
    x = 15,678.51

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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.