Home / 15,151.46-20,897.16-9,847.98

Finding the Fourth Proportional to 15,151.46, 20,897.16 and 9,847.98

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Solution

The fourth proportional to 15,151.46, 20,897.16 and 9,847.98 is: 13,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.46 : 20,897.16 = 9,847.98 : x
  2. Step 2: Convert to fraction form
    15,151.46/20,897.16 = 9,847.98/x
  3. Step 3: Cross multiply
    15,151.46x = 20,897.16 × 9,847.98
  4. Step 4: Simplify right side
    15,151.46x = 205,794,813.74
  5. Step 5: Solve for x
    x = 205,794,813.74/15,151.46
  6. Step 6: Final answer
    x = 13,582.51

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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.