Home / 14,006.25-21,011.40-5,122.02

Finding the Fourth Proportional to 14,006.25, 21,011.40 and 5,122.02

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Solution

The fourth proportional to 14,006.25, 21,011.40 and 5,122.02 is: 7,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.25 : 21,011.40 = 5,122.02 : x
  2. Step 2: Convert to fraction form
    14,006.25/21,011.40 = 5,122.02/x
  3. Step 3: Cross multiply
    14,006.25x = 21,011.40 × 5,122.02
  4. Step 4: Simplify right side
    14,006.25x = 107,620,811.03
  5. Step 5: Solve for x
    x = 107,620,811.03/14,006.25
  6. Step 6: Final answer
    x = 7,683.77

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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.