Home / 14,558.28-20,090.40-7,934.28

Finding the Fourth Proportional to 14,558.28, 20,090.40 and 7,934.28

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Solution

The fourth proportional to 14,558.28, 20,090.40 and 7,934.28 is: 10,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.28 : 20,090.40 = 7,934.28 : x
  2. Step 2: Convert to fraction form
    14,558.28/20,090.40 = 7,934.28/x
  3. Step 3: Cross multiply
    14,558.28x = 20,090.40 × 7,934.28
  4. Step 4: Simplify right side
    14,558.28x = 159,402,858.91
  5. Step 5: Solve for x
    x = 159,402,858.91/14,558.28
  6. Step 6: Final answer
    x = 10,949.29

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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.