Home / 15,820.70-21,837.75-11,106.14

Finding the Fourth Proportional to 15,820.70, 21,837.75 and 11,106.14

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Solution

The fourth proportional to 15,820.70, 21,837.75 and 11,106.14 is: 15,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.70 : 21,837.75 = 11,106.14 : x
  2. Step 2: Convert to fraction form
    15,820.70/21,837.75 = 11,106.14/x
  3. Step 3: Cross multiply
    15,820.70x = 21,837.75 × 11,106.14
  4. Step 4: Simplify right side
    15,820.70x = 242,533,108.79
  5. Step 5: Solve for x
    x = 242,533,108.79/15,820.70
  6. Step 6: Final answer
    x = 15,330.11

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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.