Home / 14,235.78-21,360.36-8,969.58

Finding the Fourth Proportional to 14,235.78, 21,360.36 and 8,969.58

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Solution

The fourth proportional to 14,235.78, 21,360.36 and 8,969.58 is: 13,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.78 : 21,360.36 = 8,969.58 : x
  2. Step 2: Convert to fraction form
    14,235.78/21,360.36 = 8,969.58/x
  3. Step 3: Cross multiply
    14,235.78x = 21,360.36 × 8,969.58
  4. Step 4: Simplify right side
    14,235.78x = 191,593,457.85
  5. Step 5: Solve for x
    x = 191,593,457.85/14,235.78
  6. Step 6: Final answer
    x = 13,458.59

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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.