Home / 13,997.23-19,316.18-7,709.61

Finding the Fourth Proportional to 13,997.23, 19,316.18 and 7,709.61

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Solution

The fourth proportional to 13,997.23, 19,316.18 and 7,709.61 is: 10,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.23 : 19,316.18 = 7,709.61 : x
  2. Step 2: Convert to fraction form
    13,997.23/19,316.18 = 7,709.61/x
  3. Step 3: Cross multiply
    13,997.23x = 19,316.18 × 7,709.61
  4. Step 4: Simplify right side
    13,997.23x = 148,920,214.49
  5. Step 5: Solve for x
    x = 148,920,214.49/13,997.23
  6. Step 6: Final answer
    x = 10,639.26

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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.