Home / 13,212.28-19,779.54-7,360.84

Finding the Fourth Proportional to 13,212.28, 19,779.54 and 7,360.84

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Solution

The fourth proportional to 13,212.28, 19,779.54 and 7,360.84 is: 11,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.28 : 19,779.54 = 7,360.84 : x
  2. Step 2: Convert to fraction form
    13,212.28/19,779.54 = 7,360.84/x
  3. Step 3: Cross multiply
    13,212.28x = 19,779.54 × 7,360.84
  4. Step 4: Simplify right side
    13,212.28x = 145,594,029.21
  5. Step 5: Solve for x
    x = 145,594,029.21/13,212.28
  6. Step 6: Final answer
    x = 11,019.60

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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.