Home / 15,337.72-21,165.54-8,623.62

Finding the Fourth Proportional to 15,337.72, 21,165.54 and 8,623.62

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Solution

The fourth proportional to 15,337.72, 21,165.54 and 8,623.62 is: 11,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.72 : 21,165.54 = 8,623.62 : x
  2. Step 2: Convert to fraction form
    15,337.72/21,165.54 = 8,623.62/x
  3. Step 3: Cross multiply
    15,337.72x = 21,165.54 × 8,623.62
  4. Step 4: Simplify right side
    15,337.72x = 182,523,574.05
  5. Step 5: Solve for x
    x = 182,523,574.05/15,337.72
  6. Step 6: Final answer
    x = 11,900.31

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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.