Home / 18,763.23-28,113.60-13,204.91

Finding the Fourth Proportional to 18,763.23, 28,113.60 and 13,204.91

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Solution

The fourth proportional to 18,763.23, 28,113.60 and 13,204.91 is: 19,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.23 : 28,113.60 = 13,204.91 : x
  2. Step 2: Convert to fraction form
    18,763.23/28,113.60 = 13,204.91/x
  3. Step 3: Cross multiply
    18,763.23x = 28,113.60 × 13,204.91
  4. Step 4: Simplify right side
    18,763.23x = 371,237,417.21
  5. Step 5: Solve for x
    x = 371,237,417.21/18,763.23
  6. Step 6: Final answer
    x = 19,785.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.