Home / 14,985.75-22,479-5,124.96

Finding the Fourth Proportional to 14,985.75, 22,479 and 5,124.96

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Solution

The fourth proportional to 14,985.75, 22,479 and 5,124.96 is: 7,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.75 : 22,479 = 5,124.96 : x
  2. Step 2: Convert to fraction form
    14,985.75/22,479 = 5,124.96/x
  3. Step 3: Cross multiply
    14,985.75x = 22,479 × 5,124.96
  4. Step 4: Simplify right side
    14,985.75x = 115,203,975.84
  5. Step 5: Solve for x
    x = 115,203,975.84/14,985.75
  6. Step 6: Final answer
    x = 7,687.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.