Home / 13,997.54-19,316.59-7,709.92

Finding the Fourth Proportional to 13,997.54, 19,316.59 and 7,709.92

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Solution

The fourth proportional to 13,997.54, 19,316.59 and 7,709.92 is: 10,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.54 : 19,316.59 = 7,709.92 : x
  2. Step 2: Convert to fraction form
    13,997.54/19,316.59 = 7,709.92/x
  3. Step 3: Cross multiply
    13,997.54x = 19,316.59 × 7,709.92
  4. Step 4: Simplify right side
    13,997.54x = 148,929,296.01
  5. Step 5: Solve for x
    x = 148,929,296.01/13,997.54
  6. Step 6: Final answer
    x = 10,639.67

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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.