Home / 18,160.49-25,061.97-12,784.62

Finding the Fourth Proportional to 18,160.49, 25,061.97 and 12,784.62

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Solution

The fourth proportional to 18,160.49, 25,061.97 and 12,784.62 is: 17,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.49 : 25,061.97 = 12,784.62 : x
  2. Step 2: Convert to fraction form
    18,160.49/25,061.97 = 12,784.62/x
  3. Step 3: Cross multiply
    18,160.49x = 25,061.97 × 12,784.62
  4. Step 4: Simplify right side
    18,160.49x = 320,407,762.90
  5. Step 5: Solve for x
    x = 320,407,762.90/18,160.49
  6. Step 6: Final answer
    x = 17,643.12

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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.