Home / 12,936.18-17,851.23-7,631.22

Finding the Fourth Proportional to 12,936.18, 17,851.23 and 7,631.22

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Solution

The fourth proportional to 12,936.18, 17,851.23 and 7,631.22 is: 10,530.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.18 : 17,851.23 = 7,631.22 : x
  2. Step 2: Convert to fraction form
    12,936.18/17,851.23 = 7,631.22/x
  3. Step 3: Cross multiply
    12,936.18x = 17,851.23 × 7,631.22
  4. Step 4: Simplify right side
    12,936.18x = 136,226,663.40
  5. Step 5: Solve for x
    x = 136,226,663.40/12,936.18
  6. Step 6: Final answer
    x = 10,530.67

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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.