Home / 10,007.85-15,011.58-2,987.85

Finding the Fourth Proportional to 10,007.85, 15,011.58 and 2,987.85

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Solution

The fourth proportional to 10,007.85, 15,011.58 and 2,987.85 is: 4,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.85 : 15,011.58 = 2,987.85 : x
  2. Step 2: Convert to fraction form
    10,007.85/15,011.58 = 2,987.85/x
  3. Step 3: Cross multiply
    10,007.85x = 15,011.58 × 2,987.85
  4. Step 4: Simplify right side
    10,007.85x = 44,852,349.30
  5. Step 5: Solve for x
    x = 44,852,349.30/10,007.85
  6. Step 6: Final answer
    x = 4,481.72

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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.