Home / 18,156.80-25,055.60-10,603.56

Finding the Fourth Proportional to 18,156.80, 25,055.60 and 10,603.56

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Solution

The fourth proportional to 18,156.80, 25,055.60 and 10,603.56 is: 14,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.80 : 25,055.60 = 10,603.56 : x
  2. Step 2: Convert to fraction form
    18,156.80/25,055.60 = 10,603.56/x
  3. Step 3: Cross multiply
    18,156.80x = 25,055.60 × 10,603.56
  4. Step 4: Simplify right side
    18,156.80x = 265,678,557.94
  5. Step 5: Solve for x
    x = 265,678,557.94/18,156.80
  6. Step 6: Final answer
    x = 14,632.45

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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.