Home / 10,018.46-13,831.77-6,434.87

Finding the Fourth Proportional to 10,018.46, 13,831.77 and 6,434.87

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Solution

The fourth proportional to 10,018.46, 13,831.77 and 6,434.87 is: 8,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.46 : 13,831.77 = 6,434.87 : x
  2. Step 2: Convert to fraction form
    10,018.46/13,831.77 = 6,434.87/x
  3. Step 3: Cross multiply
    10,018.46x = 13,831.77 × 6,434.87
  4. Step 4: Simplify right side
    10,018.46x = 89,005,572.66
  5. Step 5: Solve for x
    x = 89,005,572.66/10,018.46
  6. Step 6: Final answer
    x = 8,884.15

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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.