Home / 14,720.65-20,300.51-11,358.14

Finding the Fourth Proportional to 14,720.65, 20,300.51 and 11,358.14

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Solution

The fourth proportional to 14,720.65, 20,300.51 and 11,358.14 is: 15,663.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.65 : 20,300.51 = 11,358.14 : x
  2. Step 2: Convert to fraction form
    14,720.65/20,300.51 = 11,358.14/x
  3. Step 3: Cross multiply
    14,720.65x = 20,300.51 × 11,358.14
  4. Step 4: Simplify right side
    14,720.65x = 230,575,961.54
  5. Step 5: Solve for x
    x = 230,575,961.54/14,720.65
  6. Step 6: Final answer
    x = 15,663.44

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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.