Home / 12,102.90-18,151.59-4,603.79

Finding the Fourth Proportional to 12,102.90, 18,151.59 and 4,603.79

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Solution

The fourth proportional to 12,102.90, 18,151.59 and 4,603.79 is: 6,904.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.90 : 18,151.59 = 4,603.79 : x
  2. Step 2: Convert to fraction form
    12,102.90/18,151.59 = 4,603.79/x
  3. Step 3: Cross multiply
    12,102.90x = 18,151.59 × 4,603.79
  4. Step 4: Simplify right side
    12,102.90x = 83,566,069.07
  5. Step 5: Solve for x
    x = 83,566,069.07/12,102.90
  6. Step 6: Final answer
    x = 6,904.63

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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.