Home / 10,470.27-15,705.42-4,919.55

Finding the Fourth Proportional to 10,470.27, 15,705.42 and 4,919.55

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Solution

The fourth proportional to 10,470.27, 15,705.42 and 4,919.55 is: 7,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.27 : 15,705.42 = 4,919.55 : x
  2. Step 2: Convert to fraction form
    10,470.27/15,705.42 = 4,919.55/x
  3. Step 3: Cross multiply
    10,470.27x = 15,705.42 × 4,919.55
  4. Step 4: Simplify right side
    10,470.27x = 77,263,598.96
  5. Step 5: Solve for x
    x = 77,263,598.96/10,470.27
  6. Step 6: Final answer
    x = 7,379.33

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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.