Home / 15,374.49-21,220.25-10,066.22

Finding the Fourth Proportional to 15,374.49, 21,220.25 and 10,066.22

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Solution

The fourth proportional to 15,374.49, 21,220.25 and 10,066.22 is: 13,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.49 : 21,220.25 = 10,066.22 : x
  2. Step 2: Convert to fraction form
    15,374.49/21,220.25 = 10,066.22/x
  3. Step 3: Cross multiply
    15,374.49x = 21,220.25 × 10,066.22
  4. Step 4: Simplify right side
    15,374.49x = 213,607,548.52
  5. Step 5: Solve for x
    x = 213,607,548.52/15,374.49
  6. Step 6: Final answer
    x = 13,893.63

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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.