Home / 19,305.72-26,626.38-12,590.84

Finding the Fourth Proportional to 19,305.72, 26,626.38 and 12,590.84

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Solution

The fourth proportional to 19,305.72, 26,626.38 and 12,590.84 is: 17,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.72 : 26,626.38 = 12,590.84 : x
  2. Step 2: Convert to fraction form
    19,305.72/26,626.38 = 12,590.84/x
  3. Step 3: Cross multiply
    19,305.72x = 26,626.38 × 12,590.84
  4. Step 4: Simplify right side
    19,305.72x = 335,248,490.36
  5. Step 5: Solve for x
    x = 335,248,490.36/19,305.72
  6. Step 6: Final answer
    x = 17,365.24

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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.