Home / 13,072.04-18,039.50-7,103.76

Finding the Fourth Proportional to 13,072.04, 18,039.50 and 7,103.76

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Solution

The fourth proportional to 13,072.04, 18,039.50 and 7,103.76 is: 9,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.04 : 18,039.50 = 7,103.76 : x
  2. Step 2: Convert to fraction form
    13,072.04/18,039.50 = 7,103.76/x
  3. Step 3: Cross multiply
    13,072.04x = 18,039.50 × 7,103.76
  4. Step 4: Simplify right side
    13,072.04x = 128,148,278.52
  5. Step 5: Solve for x
    x = 128,148,278.52/13,072.04
  6. Step 6: Final answer
    x = 9,803.23

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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.