Home / 15,353.06-21,095.39-12,203.78

Finding the Fourth Proportional to 15,353.06, 21,095.39 and 12,203.78

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Solution

The fourth proportional to 15,353.06, 21,095.39 and 12,203.78 is: 16,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.06 : 21,095.39 = 12,203.78 : x
  2. Step 2: Convert to fraction form
    15,353.06/21,095.39 = 12,203.78/x
  3. Step 3: Cross multiply
    15,353.06x = 21,095.39 × 12,203.78
  4. Step 4: Simplify right side
    15,353.06x = 257,443,423.61
  5. Step 5: Solve for x
    x = 257,443,423.61/15,353.06
  6. Step 6: Final answer
    x = 16,768.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.