Home / 14,155.45-19,535.61-8,490.41

Finding the Fourth Proportional to 14,155.45, 19,535.61 and 8,490.41

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Solution

The fourth proportional to 14,155.45, 19,535.61 and 8,490.41 is: 11,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.45 : 19,535.61 = 8,490.41 : x
  2. Step 2: Convert to fraction form
    14,155.45/19,535.61 = 8,490.41/x
  3. Step 3: Cross multiply
    14,155.45x = 19,535.61 × 8,490.41
  4. Step 4: Simplify right side
    14,155.45x = 165,865,338.50
  5. Step 5: Solve for x
    x = 165,865,338.50/14,155.45
  6. Step 6: Final answer
    x = 11,717.42

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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.