Home / 11,931.71-16,465.21-6,626.48

Finding the Fourth Proportional to 11,931.71, 16,465.21 and 6,626.48

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Solution

The fourth proportional to 11,931.71, 16,465.21 and 6,626.48 is: 9,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.71 : 16,465.21 = 6,626.48 : x
  2. Step 2: Convert to fraction form
    11,931.71/16,465.21 = 6,626.48/x
  3. Step 3: Cross multiply
    11,931.71x = 16,465.21 × 6,626.48
  4. Step 4: Simplify right side
    11,931.71x = 109,106,285.87
  5. Step 5: Solve for x
    x = 109,106,285.87/11,931.71
  6. Step 6: Final answer
    x = 9,144.23

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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.