Home / 14,721.20-22,038.60-8,889.20

Finding the Fourth Proportional to 14,721.20, 22,038.60 and 8,889.20

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Solution

The fourth proportional to 14,721.20, 22,038.60 and 8,889.20 is: 13,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.20 : 22,038.60 = 8,889.20 : x
  2. Step 2: Convert to fraction form
    14,721.20/22,038.60 = 8,889.20/x
  3. Step 3: Cross multiply
    14,721.20x = 22,038.60 × 8,889.20
  4. Step 4: Simplify right side
    14,721.20x = 195,905,523.12
  5. Step 5: Solve for x
    x = 195,905,523.12/14,721.20
  6. Step 6: Final answer
    x = 13,307.71

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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.