Home / 13,315.35-19,971.55-4,766.45

Finding the Fourth Proportional to 13,315.35, 19,971.55 and 4,766.45

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Solution

The fourth proportional to 13,315.35, 19,971.55 and 4,766.45 is: 7,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.35 : 19,971.55 = 4,766.45 : x
  2. Step 2: Convert to fraction form
    13,315.35/19,971.55 = 4,766.45/x
  3. Step 3: Cross multiply
    13,315.35x = 19,971.55 × 4,766.45
  4. Step 4: Simplify right side
    13,315.35x = 95,193,462.40
  5. Step 5: Solve for x
    x = 95,193,462.40/13,315.35
  6. Step 6: Final answer
    x = 7,149.15

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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.