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Finding the Fourth Proportional to 19,288.64, 26,619.04 and 10,904.64

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Solution

The fourth proportional to 19,288.64, 26,619.04 and 10,904.64 is: 15,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.64 : 26,619.04 = 10,904.64 : x
  2. Step 2: Convert to fraction form
    19,288.64/26,619.04 = 10,904.64/x
  3. Step 3: Cross multiply
    19,288.64x = 26,619.04 × 10,904.64
  4. Step 4: Simplify right side
    19,288.64x = 290,271,048.35
  5. Step 5: Solve for x
    x = 290,271,048.35/19,288.64
  6. Step 6: Final answer
    x = 15,048.81

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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.