Home / 11,239.53-15,501.78-7,206.74

Finding the Fourth Proportional to 11,239.53, 15,501.78 and 7,206.74

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Solution

The fourth proportional to 11,239.53, 15,501.78 and 7,206.74 is: 9,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.53 : 15,501.78 = 7,206.74 : x
  2. Step 2: Convert to fraction form
    11,239.53/15,501.78 = 7,206.74/x
  3. Step 3: Cross multiply
    11,239.53x = 15,501.78 × 7,206.74
  4. Step 4: Simplify right side
    11,239.53x = 111,717,298.00
  5. Step 5: Solve for x
    x = 111,717,298.00/11,239.53
  6. Step 6: Final answer
    x = 9,939.68

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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.