Home / 9,026.74-12,429.21-7,901.38

Finding the Fourth Proportional to 9,026.74, 12,429.21 and 7,901.38

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Solution

The fourth proportional to 9,026.74, 12,429.21 and 7,901.38 is: 10,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,026.74 : 12,429.21 = 7,901.38 : x
  2. Step 2: Convert to fraction form
    9,026.74/12,429.21 = 7,901.38/x
  3. Step 3: Cross multiply
    9,026.74x = 12,429.21 × 7,901.38
  4. Step 4: Simplify right side
    9,026.74x = 98,207,911.31
  5. Step 5: Solve for x
    x = 98,207,911.31/9,026.74
  6. Step 6: Final answer
    x = 10,879.67

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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.