Home / 10,378.08-15,567.93-5,179.50

Finding the Fourth Proportional to 10,378.08, 15,567.93 and 5,179.50

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Solution

The fourth proportional to 10,378.08, 15,567.93 and 5,179.50 is: 7,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.08 : 15,567.93 = 5,179.50 : x
  2. Step 2: Convert to fraction form
    10,378.08/15,567.93 = 5,179.50/x
  3. Step 3: Cross multiply
    10,378.08x = 15,567.93 × 5,179.50
  4. Step 4: Simplify right side
    10,378.08x = 80,634,093.44
  5. Step 5: Solve for x
    x = 80,634,093.44/10,378.08
  6. Step 6: Final answer
    x = 7,769.65

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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.