Home / 14,921.89-20,595.53-11,685.29

Finding the Fourth Proportional to 14,921.89, 20,595.53 and 11,685.29

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Solution

The fourth proportional to 14,921.89, 20,595.53 and 11,685.29 is: 16,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.89 : 20,595.53 = 11,685.29 : x
  2. Step 2: Convert to fraction form
    14,921.89/20,595.53 = 11,685.29/x
  3. Step 3: Cross multiply
    14,921.89x = 20,595.53 × 11,685.29
  4. Step 4: Simplify right side
    14,921.89x = 240,664,666.99
  5. Step 5: Solve for x
    x = 240,664,666.99/14,921.89
  6. Step 6: Final answer
    x = 16,128.30

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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.