Home / 14,428.83-19,911.93-8,141.34

Finding the Fourth Proportional to 14,428.83, 19,911.93 and 8,141.34

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Solution

The fourth proportional to 14,428.83, 19,911.93 and 8,141.34 is: 11,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.83 : 19,911.93 = 8,141.34 : x
  2. Step 2: Convert to fraction form
    14,428.83/19,911.93 = 8,141.34/x
  3. Step 3: Cross multiply
    14,428.83x = 19,911.93 × 8,141.34
  4. Step 4: Simplify right side
    14,428.83x = 162,109,792.19
  5. Step 5: Solve for x
    x = 162,109,792.19/14,428.83
  6. Step 6: Final answer
    x = 11,235.13

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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.