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Finding the Fourth Proportional to 13,756.86, 19,000.04 and 9,272.90

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Solution

The fourth proportional to 13,756.86, 19,000.04 and 9,272.90 is: 12,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.86 : 19,000.04 = 9,272.90 : x
  2. Step 2: Convert to fraction form
    13,756.86/19,000.04 = 9,272.90/x
  3. Step 3: Cross multiply
    13,756.86x = 19,000.04 × 9,272.90
  4. Step 4: Simplify right side
    13,756.86x = 176,185,472.05
  5. Step 5: Solve for x
    x = 176,185,472.05/13,756.86
  6. Step 6: Final answer
    x = 12,807.10

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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.