Home / 14,448.21-21,689.60-8,607.57

Finding the Fourth Proportional to 14,448.21, 21,689.60 and 8,607.57

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Solution

The fourth proportional to 14,448.21, 21,689.60 and 8,607.57 is: 12,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,448.21 : 21,689.60 = 8,607.57 : x
  2. Step 2: Convert to fraction form
    14,448.21/21,689.60 = 8,607.57/x
  3. Step 3: Cross multiply
    14,448.21x = 21,689.60 × 8,607.57
  4. Step 4: Simplify right side
    14,448.21x = 186,694,750.27
  5. Step 5: Solve for x
    x = 186,694,750.27/14,448.21
  6. Step 6: Final answer
    x = 12,921.65

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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.