Home / 19,141.08-26,415-11,587.32

Finding the Fourth Proportional to 19,141.08, 26,415 and 11,587.32

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Solution

The fourth proportional to 19,141.08, 26,415 and 11,587.32 is: 15,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.08 : 26,415 = 11,587.32 : x
  2. Step 2: Convert to fraction form
    19,141.08/26,415 = 11,587.32/x
  3. Step 3: Cross multiply
    19,141.08x = 26,415 × 11,587.32
  4. Step 4: Simplify right side
    19,141.08x = 306,079,057.80
  5. Step 5: Solve for x
    x = 306,079,057.80/19,141.08
  6. Step 6: Final answer
    x = 15,990.69

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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.