Home / 18,739.47-25,824.88-13,425.06

Finding the Fourth Proportional to 18,739.47, 25,824.88 and 13,425.06

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Solution

The fourth proportional to 18,739.47, 25,824.88 and 13,425.06 is: 18,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.47 : 25,824.88 = 13,425.06 : x
  2. Step 2: Convert to fraction form
    18,739.47/25,824.88 = 13,425.06/x
  3. Step 3: Cross multiply
    18,739.47x = 25,824.88 × 13,425.06
  4. Step 4: Simplify right side
    18,739.47x = 346,700,456.34
  5. Step 5: Solve for x
    x = 346,700,456.34/18,739.47
  6. Step 6: Final answer
    x = 18,501.08

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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.