Home / 8,123.79-11,211.05-4,587.03

Finding the Fourth Proportional to 8,123.79, 11,211.05 and 4,587.03

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Solution

The fourth proportional to 8,123.79, 11,211.05 and 4,587.03 is: 6,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.79 : 11,211.05 = 4,587.03 : x
  2. Step 2: Convert to fraction form
    8,123.79/11,211.05 = 4,587.03/x
  3. Step 3: Cross multiply
    8,123.79x = 11,211.05 × 4,587.03
  4. Step 4: Simplify right side
    8,123.79x = 51,425,399.75
  5. Step 5: Solve for x
    x = 51,425,399.75/8,123.79
  6. Step 6: Final answer
    x = 6,330.22

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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.