Home / 9,678.06-13,360.76-7,519.80

Finding the Fourth Proportional to 9,678.06, 13,360.76 and 7,519.80

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Solution

The fourth proportional to 9,678.06, 13,360.76 and 7,519.80 is: 10,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.06 : 13,360.76 = 7,519.80 : x
  2. Step 2: Convert to fraction form
    9,678.06/13,360.76 = 7,519.80/x
  3. Step 3: Cross multiply
    9,678.06x = 13,360.76 × 7,519.80
  4. Step 4: Simplify right side
    9,678.06x = 100,470,243.05
  5. Step 5: Solve for x
    x = 100,470,243.05/9,678.06
  6. Step 6: Final answer
    x = 10,381.24

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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.