Home / 9,418.51-14,127.77-4,220.74

Finding the Fourth Proportional to 9,418.51, 14,127.77 and 4,220.74

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Solution

The fourth proportional to 9,418.51, 14,127.77 and 4,220.74 is: 6,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.51 : 14,127.77 = 4,220.74 : x
  2. Step 2: Convert to fraction form
    9,418.51/14,127.77 = 4,220.74/x
  3. Step 3: Cross multiply
    9,418.51x = 14,127.77 × 4,220.74
  4. Step 4: Simplify right side
    9,418.51x = 59,629,643.95
  5. Step 5: Solve for x
    x = 59,629,643.95/9,418.51
  6. Step 6: Final answer
    x = 6,331.11

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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.