Home / 19,148.64-26,412.14-12,422.25

Finding the Fourth Proportional to 19,148.64, 26,412.14 and 12,422.25

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Solution

The fourth proportional to 19,148.64, 26,412.14 and 12,422.25 is: 17,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.64 : 26,412.14 = 12,422.25 : x
  2. Step 2: Convert to fraction form
    19,148.64/26,412.14 = 12,422.25/x
  3. Step 3: Cross multiply
    19,148.64x = 26,412.14 × 12,422.25
  4. Step 4: Simplify right side
    19,148.64x = 328,098,206.12
  5. Step 5: Solve for x
    x = 328,098,206.12/19,148.64
  6. Step 6: Final answer
    x = 17,134.28

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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.