Home / 9,688.83-13,367.64-5,708.49

Finding the Fourth Proportional to 9,688.83, 13,367.64 and 5,708.49

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Solution

The fourth proportional to 9,688.83, 13,367.64 and 5,708.49 is: 7,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.83 : 13,367.64 = 5,708.49 : x
  2. Step 2: Convert to fraction form
    9,688.83/13,367.64 = 5,708.49/x
  3. Step 3: Cross multiply
    9,688.83x = 13,367.64 × 5,708.49
  4. Step 4: Simplify right side
    9,688.83x = 76,309,039.26
  5. Step 5: Solve for x
    x = 76,309,039.26/9,688.83
  6. Step 6: Final answer
    x = 7,875.98

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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.