Home / 15,290.86-21,102.24-11,507.22

Finding the Fourth Proportional to 15,290.86, 21,102.24 and 11,507.22

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Solution

The fourth proportional to 15,290.86, 21,102.24 and 11,507.22 is: 15,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.86 : 21,102.24 = 11,507.22 : x
  2. Step 2: Convert to fraction form
    15,290.86/21,102.24 = 11,507.22/x
  3. Step 3: Cross multiply
    15,290.86x = 21,102.24 × 11,507.22
  4. Step 4: Simplify right side
    15,290.86x = 242,828,118.17
  5. Step 5: Solve for x
    x = 242,828,118.17/15,290.86
  6. Step 6: Final answer
    x = 15,880.61

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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.