Home / 19,105.16-26,374.08-12,742.40

Finding the Fourth Proportional to 19,105.16, 26,374.08 and 12,742.40

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Solution

The fourth proportional to 19,105.16, 26,374.08 and 12,742.40 is: 17,590.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.16 : 26,374.08 = 12,742.40 : x
  2. Step 2: Convert to fraction form
    19,105.16/26,374.08 = 12,742.40/x
  3. Step 3: Cross multiply
    19,105.16x = 26,374.08 × 12,742.40
  4. Step 4: Simplify right side
    19,105.16x = 336,069,076.99
  5. Step 5: Solve for x
    x = 336,069,076.99/19,105.16
  6. Step 6: Final answer
    x = 17,590.49

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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.