Home / 15,111.75-22,515.74-14,262.91

Finding the Fourth Proportional to 15,111.75, 22,515.74 and 14,262.91

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Solution

The fourth proportional to 15,111.75, 22,515.74 and 14,262.91 is: 21,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.75 : 22,515.74 = 14,262.91 : x
  2. Step 2: Convert to fraction form
    15,111.75/22,515.74 = 14,262.91/x
  3. Step 3: Cross multiply
    15,111.75x = 22,515.74 × 14,262.91
  4. Step 4: Simplify right side
    15,111.75x = 321,139,973.20
  5. Step 5: Solve for x
    x = 321,139,973.20/15,111.75
  6. Step 6: Final answer
    x = 21,251.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.