Home / 12,313.81-18,475.27-8,831.62

Finding the Fourth Proportional to 12,313.81, 18,475.27 and 8,831.62

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Solution

The fourth proportional to 12,313.81, 18,475.27 and 8,831.62 is: 13,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.81 : 18,475.27 = 8,831.62 : x
  2. Step 2: Convert to fraction form
    12,313.81/18,475.27 = 8,831.62/x
  3. Step 3: Cross multiply
    12,313.81x = 18,475.27 × 8,831.62
  4. Step 4: Simplify right side
    12,313.81x = 163,166,564.04
  5. Step 5: Solve for x
    x = 163,166,564.04/12,313.81
  6. Step 6: Final answer
    x = 13,250.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.