Home / 19,416.78-26,797.68-12,708.18

Finding the Fourth Proportional to 19,416.78, 26,797.68 and 12,708.18

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Solution

The fourth proportional to 19,416.78, 26,797.68 and 12,708.18 is: 17,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.78 : 26,797.68 = 12,708.18 : x
  2. Step 2: Convert to fraction form
    19,416.78/26,797.68 = 12,708.18/x
  3. Step 3: Cross multiply
    19,416.78x = 26,797.68 × 12,708.18
  4. Step 4: Simplify right side
    19,416.78x = 340,549,741.02
  5. Step 5: Solve for x
    x = 340,549,741.02/19,416.78
  6. Step 6: Final answer
    x = 17,538.94

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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.