Home / 11,347.76-15,648.90-7,571.08

Finding the Fourth Proportional to 11,347.76, 15,648.90 and 7,571.08

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Solution

The fourth proportional to 11,347.76, 15,648.90 and 7,571.08 is: 10,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.76 : 15,648.90 = 7,571.08 : x
  2. Step 2: Convert to fraction form
    11,347.76/15,648.90 = 7,571.08/x
  3. Step 3: Cross multiply
    11,347.76x = 15,648.90 × 7,571.08
  4. Step 4: Simplify right side
    11,347.76x = 118,479,073.81
  5. Step 5: Solve for x
    x = 118,479,073.81/11,347.76
  6. Step 6: Final answer
    x = 10,440.75

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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.