Home / 13,972.23-20,937.76-10,445.69

Finding the Fourth Proportional to 13,972.23, 20,937.76 and 10,445.69

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Solution

The fourth proportional to 13,972.23, 20,937.76 and 10,445.69 is: 15,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.23 : 20,937.76 = 10,445.69 : x
  2. Step 2: Convert to fraction form
    13,972.23/20,937.76 = 10,445.69/x
  3. Step 3: Cross multiply
    13,972.23x = 20,937.76 × 10,445.69
  4. Step 4: Simplify right side
    13,972.23x = 218,709,376.48
  5. Step 5: Solve for x
    x = 218,709,376.48/13,972.23
  6. Step 6: Final answer
    x = 15,653.15

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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.