Home / 15,548.99-21,407.64-13,839.35

Finding the Fourth Proportional to 15,548.99, 21,407.64 and 13,839.35

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Solution

The fourth proportional to 15,548.99, 21,407.64 and 13,839.35 is: 19,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.99 : 21,407.64 = 13,839.35 : x
  2. Step 2: Convert to fraction form
    15,548.99/21,407.64 = 13,839.35/x
  3. Step 3: Cross multiply
    15,548.99x = 21,407.64 × 13,839.35
  4. Step 4: Simplify right side
    15,548.99x = 296,267,822.63
  5. Step 5: Solve for x
    x = 296,267,822.63/15,548.99
  6. Step 6: Final answer
    x = 19,053.83

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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.