Home / 9,000.18-13,488.93-5,106.78

Finding the Fourth Proportional to 9,000.18, 13,488.93 and 5,106.78

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Solution

The fourth proportional to 9,000.18, 13,488.93 and 5,106.78 is: 7,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.18 : 13,488.93 = 5,106.78 : x
  2. Step 2: Convert to fraction form
    9,000.18/13,488.93 = 5,106.78/x
  3. Step 3: Cross multiply
    9,000.18x = 13,488.93 × 5,106.78
  4. Step 4: Simplify right side
    9,000.18x = 68,884,997.95
  5. Step 5: Solve for x
    x = 68,884,997.95/9,000.18
  6. Step 6: Final answer
    x = 7,653.74

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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.