Home / 14,939.48-20,615.74-8,225.71

Finding the Fourth Proportional to 14,939.48, 20,615.74 and 8,225.71

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Solution

The fourth proportional to 14,939.48, 20,615.74 and 8,225.71 is: 11,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.48 : 20,615.74 = 8,225.71 : x
  2. Step 2: Convert to fraction form
    14,939.48/20,615.74 = 8,225.71/x
  3. Step 3: Cross multiply
    14,939.48x = 20,615.74 × 8,225.71
  4. Step 4: Simplify right side
    14,939.48x = 169,579,026.57
  5. Step 5: Solve for x
    x = 169,579,026.57/14,939.48
  6. Step 6: Final answer
    x = 11,351.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.