Home / 11,697.64-16,140.14-6,981

Finding the Fourth Proportional to 11,697.64, 16,140.14 and 6,981

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Solution

The fourth proportional to 11,697.64, 16,140.14 and 6,981 is: 9,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,697.64 : 16,140.14 = 6,981 : x
  2. Step 2: Convert to fraction form
    11,697.64/16,140.14 = 6,981/x
  3. Step 3: Cross multiply
    11,697.64x = 16,140.14 × 6,981
  4. Step 4: Simplify right side
    11,697.64x = 112,674,317.34
  5. Step 5: Solve for x
    x = 112,674,317.34/11,697.64
  6. Step 6: Final answer
    x = 9,632.23

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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.