Home / 19,058.55-26,291.70-12,688.08

Finding the Fourth Proportional to 19,058.55, 26,291.70 and 12,688.08

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Solution

The fourth proportional to 19,058.55, 26,291.70 and 12,688.08 is: 17,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,058.55 : 26,291.70 = 12,688.08 : x
  2. Step 2: Convert to fraction form
    19,058.55/26,291.70 = 12,688.08/x
  3. Step 3: Cross multiply
    19,058.55x = 26,291.70 × 12,688.08
  4. Step 4: Simplify right side
    19,058.55x = 333,591,192.94
  5. Step 5: Solve for x
    x = 333,591,192.94/19,058.55
  6. Step 6: Final answer
    x = 17,503.49

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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.