Home / 14,289.51-19,717.92-8,320.62

Finding the Fourth Proportional to 14,289.51, 19,717.92 and 8,320.62

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Solution

The fourth proportional to 14,289.51, 19,717.92 and 8,320.62 is: 11,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.51 : 19,717.92 = 8,320.62 : x
  2. Step 2: Convert to fraction form
    14,289.51/19,717.92 = 8,320.62/x
  3. Step 3: Cross multiply
    14,289.51x = 19,717.92 × 8,320.62
  4. Step 4: Simplify right side
    14,289.51x = 164,065,319.51
  5. Step 5: Solve for x
    x = 164,065,319.51/14,289.51
  6. Step 6: Final answer
    x = 11,481.52

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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.