Home / 13,783.45-19,024.28-8,407.70

Finding the Fourth Proportional to 13,783.45, 19,024.28 and 8,407.70

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Solution

The fourth proportional to 13,783.45, 19,024.28 and 8,407.70 is: 11,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.45 : 19,024.28 = 8,407.70 : x
  2. Step 2: Convert to fraction form
    13,783.45/19,024.28 = 8,407.70/x
  3. Step 3: Cross multiply
    13,783.45x = 19,024.28 × 8,407.70
  4. Step 4: Simplify right side
    13,783.45x = 159,950,396.92
  5. Step 5: Solve for x
    x = 159,950,396.92/13,783.45
  6. Step 6: Final answer
    x = 11,604.53

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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.