Home / 14,218.22-19,621.10-7,845.21

Finding the Fourth Proportional to 14,218.22, 19,621.10 and 7,845.21

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Solution

The fourth proportional to 14,218.22, 19,621.10 and 7,845.21 is: 10,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.22 : 19,621.10 = 7,845.21 : x
  2. Step 2: Convert to fraction form
    14,218.22/19,621.10 = 7,845.21/x
  3. Step 3: Cross multiply
    14,218.22x = 19,621.10 × 7,845.21
  4. Step 4: Simplify right side
    14,218.22x = 153,931,610.70
  5. Step 5: Solve for x
    x = 153,931,610.70/14,218.22
  6. Step 6: Final answer
    x = 10,826.37

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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.