Home / 15,904.03-21,911.46-12,306.62

Finding the Fourth Proportional to 15,904.03, 21,911.46 and 12,306.62

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Solution

The fourth proportional to 15,904.03, 21,911.46 and 12,306.62 is: 16,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.03 : 21,911.46 = 12,306.62 : x
  2. Step 2: Convert to fraction form
    15,904.03/21,911.46 = 12,306.62/x
  3. Step 3: Cross multiply
    15,904.03x = 21,911.46 × 12,306.62
  4. Step 4: Simplify right side
    15,904.03x = 269,655,840.77
  5. Step 5: Solve for x
    x = 269,655,840.77/15,904.03
  6. Step 6: Final answer
    x = 16,955.19

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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.