Home / 19,113.92-28,686.60-9,760.76

Finding the Fourth Proportional to 19,113.92, 28,686.60 and 9,760.76

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Solution

The fourth proportional to 19,113.92, 28,686.60 and 9,760.76 is: 14,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.92 : 28,686.60 = 9,760.76 : x
  2. Step 2: Convert to fraction form
    19,113.92/28,686.60 = 9,760.76/x
  3. Step 3: Cross multiply
    19,113.92x = 28,686.60 × 9,760.76
  4. Step 4: Simplify right side
    19,113.92x = 280,003,017.82
  5. Step 5: Solve for x
    x = 280,003,017.82/19,113.92
  6. Step 6: Final answer
    x = 14,649.17

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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.