Home / 15,110.16-20,864.63-12,605.42

Finding the Fourth Proportional to 15,110.16, 20,864.63 and 12,605.42

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Solution

The fourth proportional to 15,110.16, 20,864.63 and 12,605.42 is: 17,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.16 : 20,864.63 = 12,605.42 : x
  2. Step 2: Convert to fraction form
    15,110.16/20,864.63 = 12,605.42/x
  3. Step 3: Cross multiply
    15,110.16x = 20,864.63 × 12,605.42
  4. Step 4: Simplify right side
    15,110.16x = 263,007,351.48
  5. Step 5: Solve for x
    x = 263,007,351.48/15,110.16
  6. Step 6: Final answer
    x = 17,405.99

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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.