Home / 10,107.63-13,937.39-6,921.45

Finding the Fourth Proportional to 10,107.63, 13,937.39 and 6,921.45

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Solution

The fourth proportional to 10,107.63, 13,937.39 and 6,921.45 is: 9,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.63 : 13,937.39 = 6,921.45 : x
  2. Step 2: Convert to fraction form
    10,107.63/13,937.39 = 6,921.45/x
  3. Step 3: Cross multiply
    10,107.63x = 13,937.39 × 6,921.45
  4. Step 4: Simplify right side
    10,107.63x = 96,466,913.41
  5. Step 5: Solve for x
    x = 96,466,913.41/10,107.63
  6. Step 6: Final answer
    x = 9,543.97

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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.