Home / 8,137.40-11,228.28-4,779.50

Finding the Fourth Proportional to 8,137.40, 11,228.28 and 4,779.50

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Solution

The fourth proportional to 8,137.40, 11,228.28 and 4,779.50 is: 6,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.40 : 11,228.28 = 4,779.50 : x
  2. Step 2: Convert to fraction form
    8,137.40/11,228.28 = 4,779.50/x
  3. Step 3: Cross multiply
    8,137.40x = 11,228.28 × 4,779.50
  4. Step 4: Simplify right side
    8,137.40x = 53,665,564.26
  5. Step 5: Solve for x
    x = 53,665,564.26/8,137.40
  6. Step 6: Final answer
    x = 6,594.93

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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.