Home / 11,465.64-15,825.40-6,991.86

Finding the Fourth Proportional to 11,465.64, 15,825.40 and 6,991.86

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Solution

The fourth proportional to 11,465.64, 15,825.40 and 6,991.86 is: 9,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.64 : 15,825.40 = 6,991.86 : x
  2. Step 2: Convert to fraction form
    11,465.64/15,825.40 = 6,991.86/x
  3. Step 3: Cross multiply
    11,465.64x = 15,825.40 × 6,991.86
  4. Step 4: Simplify right side
    11,465.64x = 110,648,981.24
  5. Step 5: Solve for x
    x = 110,648,981.24/11,465.64
  6. Step 6: Final answer
    x = 9,650.48

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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.