Home / 11,122.41-15,342.26-7,345.59

Finding the Fourth Proportional to 11,122.41, 15,342.26 and 7,345.59

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Solution

The fourth proportional to 11,122.41, 15,342.26 and 7,345.59 is: 10,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.41 : 15,342.26 = 7,345.59 : x
  2. Step 2: Convert to fraction form
    11,122.41/15,342.26 = 7,345.59/x
  3. Step 3: Cross multiply
    11,122.41x = 15,342.26 × 7,345.59
  4. Step 4: Simplify right side
    11,122.41x = 112,697,898.69
  5. Step 5: Solve for x
    x = 112,697,898.69/11,122.41
  6. Step 6: Final answer
    x = 10,132.50

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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.