Home / 7,447.86-11,178.27-4,853.70

Finding the Fourth Proportional to 7,447.86, 11,178.27 and 4,853.70

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Solution

The fourth proportional to 7,447.86, 11,178.27 and 4,853.70 is: 7,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.86 : 11,178.27 = 4,853.70 : x
  2. Step 2: Convert to fraction form
    7,447.86/11,178.27 = 4,853.70/x
  3. Step 3: Cross multiply
    7,447.86x = 11,178.27 × 4,853.70
  4. Step 4: Simplify right side
    7,447.86x = 54,255,969.10
  5. Step 5: Solve for x
    x = 54,255,969.10/7,447.86
  6. Step 6: Final answer
    x = 7,284.77

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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.