Home / 18,913.34-28,374.56-5,764.91

Finding the Fourth Proportional to 18,913.34, 28,374.56 and 5,764.91

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Solution

The fourth proportional to 18,913.34, 28,374.56 and 5,764.91 is: 8,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.34 : 28,374.56 = 5,764.91 : x
  2. Step 2: Convert to fraction form
    18,913.34/28,374.56 = 5,764.91/x
  3. Step 3: Cross multiply
    18,913.34x = 28,374.56 × 5,764.91
  4. Step 4: Simplify right side
    18,913.34x = 163,576,784.69
  5. Step 5: Solve for x
    x = 163,576,784.69/18,913.34
  6. Step 6: Final answer
    x = 8,648.75

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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.