Home / 14,218.85-19,621.88-7,845.50

Finding the Fourth Proportional to 14,218.85, 19,621.88 and 7,845.50

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Solution

The fourth proportional to 14,218.85, 19,621.88 and 7,845.50 is: 10,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.85 : 19,621.88 = 7,845.50 : x
  2. Step 2: Convert to fraction form
    14,218.85/19,621.88 = 7,845.50/x
  3. Step 3: Cross multiply
    14,218.85x = 19,621.88 × 7,845.50
  4. Step 4: Simplify right side
    14,218.85x = 153,943,388.41
  5. Step 5: Solve for x
    x = 153,943,388.41/14,218.85
  6. Step 6: Final answer
    x = 10,826.71

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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.