Home / 19,005.85-28,500.57-7,310.89

Finding the Fourth Proportional to 19,005.85, 28,500.57 and 7,310.89

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Solution

The fourth proportional to 19,005.85, 28,500.57 and 7,310.89 is: 10,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.85 : 28,500.57 = 7,310.89 : x
  2. Step 2: Convert to fraction form
    19,005.85/28,500.57 = 7,310.89/x
  3. Step 3: Cross multiply
    19,005.85x = 28,500.57 × 7,310.89
  4. Step 4: Simplify right side
    19,005.85x = 208,364,532.21
  5. Step 5: Solve for x
    x = 208,364,532.21/19,005.85
  6. Step 6: Final answer
    x = 10,963.18

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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.