Home / 13,990.04-19,305.78-7,616.52

Finding the Fourth Proportional to 13,990.04, 19,305.78 and 7,616.52

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Solution

The fourth proportional to 13,990.04, 19,305.78 and 7,616.52 is: 10,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.04 : 19,305.78 = 7,616.52 : x
  2. Step 2: Convert to fraction form
    13,990.04/19,305.78 = 7,616.52/x
  3. Step 3: Cross multiply
    13,990.04x = 19,305.78 × 7,616.52
  4. Step 4: Simplify right side
    13,990.04x = 147,042,885.22
  5. Step 5: Solve for x
    x = 147,042,885.22/13,990.04
  6. Step 6: Final answer
    x = 10,510.54

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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.