Home / 13,283.04-18,329.76-7,974.72

Finding the Fourth Proportional to 13,283.04, 18,329.76 and 7,974.72

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Solution

The fourth proportional to 13,283.04, 18,329.76 and 7,974.72 is: 11,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.04 : 18,329.76 = 7,974.72 : x
  2. Step 2: Convert to fraction form
    13,283.04/18,329.76 = 7,974.72/x
  3. Step 3: Cross multiply
    13,283.04x = 18,329.76 × 7,974.72
  4. Step 4: Simplify right side
    13,283.04x = 146,174,703.67
  5. Step 5: Solve for x
    x = 146,174,703.67/13,283.04
  6. Step 6: Final answer
    x = 11,004.61

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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.