Home / 18,754.47-28,127.52-5,605.14

Finding the Fourth Proportional to 18,754.47, 28,127.52 and 5,605.14

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Solution

The fourth proportional to 18,754.47, 28,127.52 and 5,605.14 is: 8,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.47 : 28,127.52 = 5,605.14 : x
  2. Step 2: Convert to fraction form
    18,754.47/28,127.52 = 5,605.14/x
  3. Step 3: Cross multiply
    18,754.47x = 28,127.52 × 5,605.14
  4. Step 4: Simplify right side
    18,754.47x = 157,658,560.83
  5. Step 5: Solve for x
    x = 157,658,560.83/18,754.47
  6. Step 6: Final answer
    x = 8,406.45

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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.