Home / 14,268.42-19,688.91-7,894.02

Finding the Fourth Proportional to 14,268.42, 19,688.91 and 7,894.02

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Solution

The fourth proportional to 14,268.42, 19,688.91 and 7,894.02 is: 10,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.42 : 19,688.91 = 7,894.02 : x
  2. Step 2: Convert to fraction form
    14,268.42/19,688.91 = 7,894.02/x
  3. Step 3: Cross multiply
    14,268.42x = 19,688.91 × 7,894.02
  4. Step 4: Simplify right side
    14,268.42x = 155,424,649.32
  5. Step 5: Solve for x
    x = 155,424,649.32/14,268.42
  6. Step 6: Final answer
    x = 10,892.91

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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.