Home / 18,931.86-28,397.52-5,784.26

Finding the Fourth Proportional to 18,931.86, 28,397.52 and 5,784.26

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Solution

The fourth proportional to 18,931.86, 28,397.52 and 5,784.26 is: 8,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.86 : 28,397.52 = 5,784.26 : x
  2. Step 2: Convert to fraction form
    18,931.86/28,397.52 = 5,784.26/x
  3. Step 3: Cross multiply
    18,931.86x = 28,397.52 × 5,784.26
  4. Step 4: Simplify right side
    18,931.86x = 164,258,497.05
  5. Step 5: Solve for x
    x = 164,258,497.05/18,931.86
  6. Step 6: Final answer
    x = 8,676.30

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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.