Home / 15,185.94-22,780.53-6,421.74

Finding the Fourth Proportional to 15,185.94, 22,780.53 and 6,421.74

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Solution

The fourth proportional to 15,185.94, 22,780.53 and 6,421.74 is: 9,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.94 : 22,780.53 = 6,421.74 : x
  2. Step 2: Convert to fraction form
    15,185.94/22,780.53 = 6,421.74/x
  3. Step 3: Cross multiply
    15,185.94x = 22,780.53 × 6,421.74
  4. Step 4: Simplify right side
    15,185.94x = 146,290,640.72
  5. Step 5: Solve for x
    x = 146,290,640.72/15,185.94
  6. Step 6: Final answer
    x = 9,633.30

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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.