Home / 14,385.89-21,570.32-5,610.56

Finding the Fourth Proportional to 14,385.89, 21,570.32 and 5,610.56

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Solution

The fourth proportional to 14,385.89, 21,570.32 and 5,610.56 is: 8,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.89 : 21,570.32 = 5,610.56 : x
  2. Step 2: Convert to fraction form
    14,385.89/21,570.32 = 5,610.56/x
  3. Step 3: Cross multiply
    14,385.89x = 21,570.32 × 5,610.56
  4. Step 4: Simplify right side
    14,385.89x = 121,021,438.67
  5. Step 5: Solve for x
    x = 121,021,438.67/14,385.89
  6. Step 6: Final answer
    x = 8,412.51

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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.