Home / 12,683.60-19,036.20-5,674.40

Finding the Fourth Proportional to 12,683.60, 19,036.20 and 5,674.40

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Solution

The fourth proportional to 12,683.60, 19,036.20 and 5,674.40 is: 8,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.60 : 19,036.20 = 5,674.40 : x
  2. Step 2: Convert to fraction form
    12,683.60/19,036.20 = 5,674.40/x
  3. Step 3: Cross multiply
    12,683.60x = 19,036.20 × 5,674.40
  4. Step 4: Simplify right side
    12,683.60x = 108,019,013.28
  5. Step 5: Solve for x
    x = 108,019,013.28/12,683.60
  6. Step 6: Final answer
    x = 8,516.43

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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.