Home / 9,703.50-13,390.20-5,723.70

Finding the Fourth Proportional to 9,703.50, 13,390.20 and 5,723.70

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Solution

The fourth proportional to 9,703.50, 13,390.20 and 5,723.70 is: 7,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.50 : 13,390.20 = 5,723.70 : x
  2. Step 2: Convert to fraction form
    9,703.50/13,390.20 = 5,723.70/x
  3. Step 3: Cross multiply
    9,703.50x = 13,390.20 × 5,723.70
  4. Step 4: Simplify right side
    9,703.50x = 76,641,487.74
  5. Step 5: Solve for x
    x = 76,641,487.74/9,703.50
  6. Step 6: Final answer
    x = 7,898.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.