Home / 11,473.40-15,831.99-6,436.57

Finding the Fourth Proportional to 11,473.40, 15,831.99 and 6,436.57

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Solution

The fourth proportional to 11,473.40, 15,831.99 and 6,436.57 is: 8,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,473.40 : 15,831.99 = 6,436.57 : x
  2. Step 2: Convert to fraction form
    11,473.40/15,831.99 = 6,436.57/x
  3. Step 3: Cross multiply
    11,473.40x = 15,831.99 × 6,436.57
  4. Step 4: Simplify right side
    11,473.40x = 101,903,711.87
  5. Step 5: Solve for x
    x = 101,903,711.87/11,473.40
  6. Step 6: Final answer
    x = 8,881.74

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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.