Home / 15,682.68-21,646.26-9,710.96

Finding the Fourth Proportional to 15,682.68, 21,646.26 and 9,710.96

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Solution

The fourth proportional to 15,682.68, 21,646.26 and 9,710.96 is: 13,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.68 : 21,646.26 = 9,710.96 : x
  2. Step 2: Convert to fraction form
    15,682.68/21,646.26 = 9,710.96/x
  3. Step 3: Cross multiply
    15,682.68x = 21,646.26 × 9,710.96
  4. Step 4: Simplify right side
    15,682.68x = 210,205,856.78
  5. Step 5: Solve for x
    x = 210,205,856.78/15,682.68
  6. Step 6: Final answer
    x = 13,403.69

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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.