Home / 19,130.96-28,687.08-11,337.68

Finding the Fourth Proportional to 19,130.96, 28,687.08 and 11,337.68

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Solution

The fourth proportional to 19,130.96, 28,687.08 and 11,337.68 is: 17,000.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.96 : 28,687.08 = 11,337.68 : x
  2. Step 2: Convert to fraction form
    19,130.96/28,687.08 = 11,337.68/x
  3. Step 3: Cross multiply
    19,130.96x = 28,687.08 × 11,337.68
  4. Step 4: Simplify right side
    19,130.96x = 325,244,933.17
  5. Step 5: Solve for x
    x = 325,244,933.17/19,130.96
  6. Step 6: Final answer
    x = 17,000.97

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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.