Home / 14,289.60-19,717.79-8,240.07

Finding the Fourth Proportional to 14,289.60, 19,717.79 and 8,240.07

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Solution

The fourth proportional to 14,289.60, 19,717.79 and 8,240.07 is: 11,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.60 : 19,717.79 = 8,240.07 : x
  2. Step 2: Convert to fraction form
    14,289.60/19,717.79 = 8,240.07/x
  3. Step 3: Cross multiply
    14,289.60x = 19,717.79 × 8,240.07
  4. Step 4: Simplify right side
    14,289.60x = 162,475,891.67
  5. Step 5: Solve for x
    x = 162,475,891.67/14,289.60
  6. Step 6: Final answer
    x = 11,370.22

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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.