Home / 14,289.60-21,560.09-13,798.72

Finding the Fourth Proportional to 14,289.60, 21,560.09 and 13,798.72

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Solution

The fourth proportional to 14,289.60, 21,560.09 and 13,798.72 is: 20,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.60 : 21,560.09 = 13,798.72 : x
  2. Step 2: Convert to fraction form
    14,289.60/21,560.09 = 13,798.72/x
  3. Step 3: Cross multiply
    14,289.60x = 21,560.09 × 13,798.72
  4. Step 4: Simplify right side
    14,289.60x = 297,501,645.08
  5. Step 5: Solve for x
    x = 297,501,645.08/14,289.60
  6. Step 6: Final answer
    x = 20,819.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.