Home / 14,320.01-21,471.39-6,421.09

Finding the Fourth Proportional to 14,320.01, 21,471.39 and 6,421.09

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Solution

The fourth proportional to 14,320.01, 21,471.39 and 6,421.09 is: 9,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.01 : 21,471.39 = 6,421.09 : x
  2. Step 2: Convert to fraction form
    14,320.01/21,471.39 = 6,421.09/x
  3. Step 3: Cross multiply
    14,320.01x = 21,471.39 × 6,421.09
  4. Step 4: Simplify right side
    14,320.01x = 137,869,795.82
  5. Step 5: Solve for x
    x = 137,869,795.82/14,320.01
  6. Step 6: Final answer
    x = 9,627.77

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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.