Home / 14,218.18-21,320.25-4,355.08

Finding the Fourth Proportional to 14,218.18, 21,320.25 and 4,355.08

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Solution

The fourth proportional to 14,218.18, 21,320.25 and 4,355.08 is: 6,530.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.18 : 21,320.25 = 4,355.08 : x
  2. Step 2: Convert to fraction form
    14,218.18/21,320.25 = 4,355.08/x
  3. Step 3: Cross multiply
    14,218.18x = 21,320.25 × 4,355.08
  4. Step 4: Simplify right side
    14,218.18x = 92,851,394.37
  5. Step 5: Solve for x
    x = 92,851,394.37/14,218.18
  6. Step 6: Final answer
    x = 6,530.47

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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.