Home / 13,306.95-19,953.45-3,945.67

Finding the Fourth Proportional to 13,306.95, 19,953.45 and 3,945.67

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Solution

The fourth proportional to 13,306.95, 19,953.45 and 3,945.67 is: 5,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.95 : 19,953.45 = 3,945.67 : x
  2. Step 2: Convert to fraction form
    13,306.95/19,953.45 = 3,945.67/x
  3. Step 3: Cross multiply
    13,306.95x = 19,953.45 × 3,945.67
  4. Step 4: Simplify right side
    13,306.95x = 78,729,825.02
  5. Step 5: Solve for x
    x = 78,729,825.02/13,306.95
  6. Step 6: Final answer
    x = 5,916.45

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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.