Home / 19,158.59-26,435.77-11,987.66

Finding the Fourth Proportional to 19,158.59, 26,435.77 and 11,987.66

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Solution

The fourth proportional to 19,158.59, 26,435.77 and 11,987.66 is: 16,541.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.59 : 26,435.77 = 11,987.66 : x
  2. Step 2: Convert to fraction form
    19,158.59/26,435.77 = 11,987.66/x
  3. Step 3: Cross multiply
    19,158.59x = 26,435.77 × 11,987.66
  4. Step 4: Simplify right side
    19,158.59x = 316,903,058.72
  5. Step 5: Solve for x
    x = 316,903,058.72/19,158.59
  6. Step 6: Final answer
    x = 16,541.04

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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.