Home / 18,721.47-25,835.67-10,223.66

Finding the Fourth Proportional to 18,721.47, 25,835.67 and 10,223.66

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Solution

The fourth proportional to 18,721.47, 25,835.67 and 10,223.66 is: 14,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.47 : 25,835.67 = 10,223.66 : x
  2. Step 2: Convert to fraction form
    18,721.47/25,835.67 = 10,223.66/x
  3. Step 3: Cross multiply
    18,721.47x = 25,835.67 × 10,223.66
  4. Step 4: Simplify right side
    18,721.47x = 264,135,112.00
  5. Step 5: Solve for x
    x = 264,135,112.00/18,721.47
  6. Step 6: Final answer
    x = 14,108.67

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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.