Home / 14,331.60-21,509.55-11,561.40

Finding the Fourth Proportional to 14,331.60, 21,509.55 and 11,561.40

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Solution

The fourth proportional to 14,331.60, 21,509.55 and 11,561.40 is: 17,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.60 : 21,509.55 = 11,561.40 : x
  2. Step 2: Convert to fraction form
    14,331.60/21,509.55 = 11,561.40/x
  3. Step 3: Cross multiply
    14,331.60x = 21,509.55 × 11,561.40
  4. Step 4: Simplify right side
    14,331.60x = 248,680,511.37
  5. Step 5: Solve for x
    x = 248,680,511.37/14,331.60
  6. Step 6: Final answer
    x = 17,351.90

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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.