Home / 10,921.77-16,386.10-3,901.63

Finding the Fourth Proportional to 10,921.77, 16,386.10 and 3,901.63

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Solution

The fourth proportional to 10,921.77, 16,386.10 and 3,901.63 is: 5,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.77 : 16,386.10 = 3,901.63 : x
  2. Step 2: Convert to fraction form
    10,921.77/16,386.10 = 3,901.63/x
  3. Step 3: Cross multiply
    10,921.77x = 16,386.10 × 3,901.63
  4. Step 4: Simplify right side
    10,921.77x = 63,932,489.59
  5. Step 5: Solve for x
    x = 63,932,489.59/10,921.77
  6. Step 6: Final answer
    x = 5,853.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.