Home / 8,130.40-11,219.37-4,773.35

Finding the Fourth Proportional to 8,130.40, 11,219.37 and 4,773.35

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Solution

The fourth proportional to 8,130.40, 11,219.37 and 4,773.35 is: 6,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.40 : 11,219.37 = 4,773.35 : x
  2. Step 2: Convert to fraction form
    8,130.40/11,219.37 = 4,773.35/x
  3. Step 3: Cross multiply
    8,130.40x = 11,219.37 × 4,773.35
  4. Step 4: Simplify right side
    8,130.40x = 53,553,979.79
  5. Step 5: Solve for x
    x = 53,553,979.79/8,130.40
  6. Step 6: Final answer
    x = 6,586.88

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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.