Home / 15,341.62-21,171.33-8,717.62

Finding the Fourth Proportional to 15,341.62, 21,171.33 and 8,717.62

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Solution

The fourth proportional to 15,341.62, 21,171.33 and 8,717.62 is: 12,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.62 : 21,171.33 = 8,717.62 : x
  2. Step 2: Convert to fraction form
    15,341.62/21,171.33 = 8,717.62/x
  3. Step 3: Cross multiply
    15,341.62x = 21,171.33 × 8,717.62
  4. Step 4: Simplify right side
    15,341.62x = 184,563,609.83
  5. Step 5: Solve for x
    x = 184,563,609.83/15,341.62
  6. Step 6: Final answer
    x = 12,030.26

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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.