Home / 9,920.24-14,881.64-5,240.44

Finding the Fourth Proportional to 9,920.24, 14,881.64 and 5,240.44

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Solution

The fourth proportional to 9,920.24, 14,881.64 and 5,240.44 is: 7,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.24 : 14,881.64 = 5,240.44 : x
  2. Step 2: Convert to fraction form
    9,920.24/14,881.64 = 5,240.44/x
  3. Step 3: Cross multiply
    9,920.24x = 14,881.64 × 5,240.44
  4. Step 4: Simplify right side
    9,920.24x = 77,986,341.52
  5. Step 5: Solve for x
    x = 77,986,341.52/9,920.24
  6. Step 6: Final answer
    x = 7,861.34

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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.