Home / 14,389.14-19,856.96-8,015.81

Finding the Fourth Proportional to 14,389.14, 19,856.96 and 8,015.81

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Solution

The fourth proportional to 14,389.14, 19,856.96 and 8,015.81 is: 11,061.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.14 : 19,856.96 = 8,015.81 : x
  2. Step 2: Convert to fraction form
    14,389.14/19,856.96 = 8,015.81/x
  3. Step 3: Cross multiply
    14,389.14x = 19,856.96 × 8,015.81
  4. Step 4: Simplify right side
    14,389.14x = 159,169,688.22
  5. Step 5: Solve for x
    x = 159,169,688.22/14,389.14
  6. Step 6: Final answer
    x = 11,061.79

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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.