Home / 18,776.32-25,911.60-10,393.12

Finding the Fourth Proportional to 18,776.32, 25,911.60 and 10,393.12

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Solution

The fourth proportional to 18,776.32, 25,911.60 and 10,393.12 is: 14,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.32 : 25,911.60 = 10,393.12 : x
  2. Step 2: Convert to fraction form
    18,776.32/25,911.60 = 10,393.12/x
  3. Step 3: Cross multiply
    18,776.32x = 25,911.60 × 10,393.12
  4. Step 4: Simplify right side
    18,776.32x = 269,302,368.19
  5. Step 5: Solve for x
    x = 269,302,368.19/18,776.32
  6. Step 6: Final answer
    x = 14,342.66

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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.