Home / 10,107.81-13,946.45-5,915.25

Finding the Fourth Proportional to 10,107.81, 13,946.45 and 5,915.25

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Solution

The fourth proportional to 10,107.81, 13,946.45 and 5,915.25 is: 8,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.81 : 13,946.45 = 5,915.25 : x
  2. Step 2: Convert to fraction form
    10,107.81/13,946.45 = 5,915.25/x
  3. Step 3: Cross multiply
    10,107.81x = 13,946.45 × 5,915.25
  4. Step 4: Simplify right side
    10,107.81x = 82,496,708.79
  5. Step 5: Solve for x
    x = 82,496,708.79/10,107.81
  6. Step 6: Final answer
    x = 8,161.68

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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.