Home / 18,565.19-27,804.55-11,153.28

Finding the Fourth Proportional to 18,565.19, 27,804.55 and 11,153.28

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Solution

The fourth proportional to 18,565.19, 27,804.55 and 11,153.28 is: 16,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.19 : 27,804.55 = 11,153.28 : x
  2. Step 2: Convert to fraction form
    18,565.19/27,804.55 = 11,153.28/x
  3. Step 3: Cross multiply
    18,565.19x = 27,804.55 × 11,153.28
  4. Step 4: Simplify right side
    18,565.19x = 310,111,931.42
  5. Step 5: Solve for x
    x = 310,111,931.42/18,565.19
  6. Step 6: Final answer
    x = 16,703.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.