Home / 9,711.48-13,402.98-5,520.36

Finding the Fourth Proportional to 9,711.48, 13,402.98 and 5,520.36

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Solution

The fourth proportional to 9,711.48, 13,402.98 and 5,520.36 is: 7,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.48 : 13,402.98 = 5,520.36 : x
  2. Step 2: Convert to fraction form
    9,711.48/13,402.98 = 5,520.36/x
  3. Step 3: Cross multiply
    9,711.48x = 13,402.98 × 5,520.36
  4. Step 4: Simplify right side
    9,711.48x = 73,989,274.67
  5. Step 5: Solve for x
    x = 73,989,274.67/9,711.48
  6. Step 6: Final answer
    x = 7,618.74

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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.