Home / 10,001.04-13,803.12-5,811.72

Finding the Fourth Proportional to 10,001.04, 13,803.12 and 5,811.72

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Solution

The fourth proportional to 10,001.04, 13,803.12 and 5,811.72 is: 8,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.04 : 13,803.12 = 5,811.72 : x
  2. Step 2: Convert to fraction form
    10,001.04/13,803.12 = 5,811.72/x
  3. Step 3: Cross multiply
    10,001.04x = 13,803.12 × 5,811.72
  4. Step 4: Simplify right side
    10,001.04x = 80,219,868.57
  5. Step 5: Solve for x
    x = 80,219,868.57/10,001.04
  6. Step 6: Final answer
    x = 8,021.15

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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.