Home / 12,140.10-16,754.67-7,663.62

Finding the Fourth Proportional to 12,140.10, 16,754.67 and 7,663.62

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Solution

The fourth proportional to 12,140.10, 16,754.67 and 7,663.62 is: 10,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.10 : 16,754.67 = 7,663.62 : x
  2. Step 2: Convert to fraction form
    12,140.10/16,754.67 = 7,663.62/x
  3. Step 3: Cross multiply
    12,140.10x = 16,754.67 × 7,663.62
  4. Step 4: Simplify right side
    12,140.10x = 128,401,424.11
  5. Step 5: Solve for x
    x = 128,401,424.11/12,140.10
  6. Step 6: Final answer
    x = 10,576.64

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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.