Home / 19,090.23-26,355.56-12,715.17

Finding the Fourth Proportional to 19,090.23, 26,355.56 and 12,715.17

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Solution

The fourth proportional to 19,090.23, 26,355.56 and 12,715.17 is: 17,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.23 : 26,355.56 = 12,715.17 : x
  2. Step 2: Convert to fraction form
    19,090.23/26,355.56 = 12,715.17/x
  3. Step 3: Cross multiply
    19,090.23x = 26,355.56 × 12,715.17
  4. Step 4: Simplify right side
    19,090.23x = 335,115,425.85
  5. Step 5: Solve for x
    x = 335,115,425.85/19,090.23
  6. Step 6: Final answer
    x = 17,554.29

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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.