Home / 12,983.16-19,459.23-7,440.30

Finding the Fourth Proportional to 12,983.16, 19,459.23 and 7,440.30

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Solution

The fourth proportional to 12,983.16, 19,459.23 and 7,440.30 is: 11,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.16 : 19,459.23 = 7,440.30 : x
  2. Step 2: Convert to fraction form
    12,983.16/19,459.23 = 7,440.30/x
  3. Step 3: Cross multiply
    12,983.16x = 19,459.23 × 7,440.30
  4. Step 4: Simplify right side
    12,983.16x = 144,782,508.97
  5. Step 5: Solve for x
    x = 144,782,508.97/12,983.16
  6. Step 6: Final answer
    x = 11,151.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.