Home / 21,166.99-29,210.02-12,214.26

Finding the Fourth Proportional to 21,166.99, 29,210.02 and 12,214.26

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Solution

The fourth proportional to 21,166.99, 29,210.02 and 12,214.26 is: 16,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.99 : 29,210.02 = 12,214.26 : x
  2. Step 2: Convert to fraction form
    21,166.99/29,210.02 = 12,214.26/x
  3. Step 3: Cross multiply
    21,166.99x = 29,210.02 × 12,214.26
  4. Step 4: Simplify right side
    21,166.99x = 356,778,748.35
  5. Step 5: Solve for x
    x = 356,778,748.35/21,166.99
  6. Step 6: Final answer
    x = 16,855.43

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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.