Home / 11,472.76-15,831.48-6,436.28

Finding the Fourth Proportional to 11,472.76, 15,831.48 and 6,436.28

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Solution

The fourth proportional to 11,472.76, 15,831.48 and 6,436.28 is: 8,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.76 : 15,831.48 = 6,436.28 : x
  2. Step 2: Convert to fraction form
    11,472.76/15,831.48 = 6,436.28/x
  3. Step 3: Cross multiply
    11,472.76x = 15,831.48 × 6,436.28
  4. Step 4: Simplify right side
    11,472.76x = 101,895,838.09
  5. Step 5: Solve for x
    x = 101,895,838.09/11,472.76
  6. Step 6: Final answer
    x = 8,881.55

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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.