Home / 9,981.22-13,762.70-7,459.09

Finding the Fourth Proportional to 9,981.22, 13,762.70 and 7,459.09

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Solution

The fourth proportional to 9,981.22, 13,762.70 and 7,459.09 is: 10,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.22 : 13,762.70 = 7,459.09 : x
  2. Step 2: Convert to fraction form
    9,981.22/13,762.70 = 7,459.09/x
  3. Step 3: Cross multiply
    9,981.22x = 13,762.70 × 7,459.09
  4. Step 4: Simplify right side
    9,981.22x = 102,657,217.94
  5. Step 5: Solve for x
    x = 102,657,217.94/9,981.22
  6. Step 6: Final answer
    x = 10,285.04

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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.