Home / 25,346.40-38,016.64-7,814.72

Finding the Fourth Proportional to 25,346.40, 38,016.64 and 7,814.72

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Solution

The fourth proportional to 25,346.40, 38,016.64 and 7,814.72 is: 11,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.40 : 38,016.64 = 7,814.72 : x
  2. Step 2: Convert to fraction form
    25,346.40/38,016.64 = 7,814.72/x
  3. Step 3: Cross multiply
    25,346.40x = 38,016.64 × 7,814.72
  4. Step 4: Simplify right side
    25,346.40x = 297,089,396.94
  5. Step 5: Solve for x
    x = 297,089,396.94/25,346.40
  6. Step 6: Final answer
    x = 11,721.17

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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.