Home / 13,484.74-18,608.68-7,516.28

Finding the Fourth Proportional to 13,484.74, 18,608.68 and 7,516.28

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Solution

The fourth proportional to 13,484.74, 18,608.68 and 7,516.28 is: 10,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.74 : 18,608.68 = 7,516.28 : x
  2. Step 2: Convert to fraction form
    13,484.74/18,608.68 = 7,516.28/x
  3. Step 3: Cross multiply
    13,484.74x = 18,608.68 × 7,516.28
  4. Step 4: Simplify right side
    13,484.74x = 139,868,049.31
  5. Step 5: Solve for x
    x = 139,868,049.31/13,484.74
  6. Step 6: Final answer
    x = 10,372.32

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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.