Home / 14,157.36-21,238.78-7,590.90

Finding the Fourth Proportional to 14,157.36, 21,238.78 and 7,590.90

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Solution

The fourth proportional to 14,157.36, 21,238.78 and 7,590.90 is: 11,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.36 : 21,238.78 = 7,590.90 : x
  2. Step 2: Convert to fraction form
    14,157.36/21,238.78 = 7,590.90/x
  3. Step 3: Cross multiply
    14,157.36x = 21,238.78 × 7,590.90
  4. Step 4: Simplify right side
    14,157.36x = 161,221,455.10
  5. Step 5: Solve for x
    x = 161,221,455.10/14,157.36
  6. Step 6: Final answer
    x = 11,387.82

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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.