Home / 14,415.48-21,605.85-9,420.21

Finding the Fourth Proportional to 14,415.48, 21,605.85 and 9,420.21

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Solution

The fourth proportional to 14,415.48, 21,605.85 and 9,420.21 is: 14,118.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.48 : 21,605.85 = 9,420.21 : x
  2. Step 2: Convert to fraction form
    14,415.48/21,605.85 = 9,420.21/x
  3. Step 3: Cross multiply
    14,415.48x = 21,605.85 × 9,420.21
  4. Step 4: Simplify right side
    14,415.48x = 203,531,644.23
  5. Step 5: Solve for x
    x = 203,531,644.23/14,415.48
  6. Step 6: Final answer
    x = 14,118.96

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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.