Home / 14,155.70-19,535.96-8,490.67

Finding the Fourth Proportional to 14,155.70, 19,535.96 and 8,490.67

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Solution

The fourth proportional to 14,155.70, 19,535.96 and 8,490.67 is: 11,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.70 : 19,535.96 = 8,490.67 : x
  2. Step 2: Convert to fraction form
    14,155.70/19,535.96 = 8,490.67/x
  3. Step 3: Cross multiply
    14,155.70x = 19,535.96 × 8,490.67
  4. Step 4: Simplify right side
    14,155.70x = 165,873,389.49
  5. Step 5: Solve for x
    x = 165,873,389.49/14,155.70
  6. Step 6: Final answer
    x = 11,717.78

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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.