Home / 10,921.20-16,368.09-4,673.87

Finding the Fourth Proportional to 10,921.20, 16,368.09 and 4,673.87

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Solution

The fourth proportional to 10,921.20, 16,368.09 and 4,673.87 is: 7,004.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.20 : 16,368.09 = 4,673.87 : x
  2. Step 2: Convert to fraction form
    10,921.20/16,368.09 = 4,673.87/x
  3. Step 3: Cross multiply
    10,921.20x = 16,368.09 × 4,673.87
  4. Step 4: Simplify right side
    10,921.20x = 76,502,242.97
  5. Step 5: Solve for x
    x = 76,502,242.97/10,921.20
  6. Step 6: Final answer
    x = 7,004.93

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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.