Home / 13,272.17-18,315.50-7,303.68

Finding the Fourth Proportional to 13,272.17, 18,315.50 and 7,303.68

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Solution

The fourth proportional to 13,272.17, 18,315.50 and 7,303.68 is: 10,079.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.17 : 18,315.50 = 7,303.68 : x
  2. Step 2: Convert to fraction form
    13,272.17/18,315.50 = 7,303.68/x
  3. Step 3: Cross multiply
    13,272.17x = 18,315.50 × 7,303.68
  4. Step 4: Simplify right side
    13,272.17x = 133,770,514.52
  5. Step 5: Solve for x
    x = 133,770,514.52/13,272.17
  6. Step 6: Final answer
    x = 10,079.03

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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.