Home / 13,058.12-18,012.26-7,751.80

Finding the Fourth Proportional to 13,058.12, 18,012.26 and 7,751.80

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Solution

The fourth proportional to 13,058.12, 18,012.26 and 7,751.80 is: 10,692.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.12 : 18,012.26 = 7,751.80 : x
  2. Step 2: Convert to fraction form
    13,058.12/18,012.26 = 7,751.80/x
  3. Step 3: Cross multiply
    13,058.12x = 18,012.26 × 7,751.80
  4. Step 4: Simplify right side
    13,058.12x = 139,627,437.07
  5. Step 5: Solve for x
    x = 139,627,437.07/13,058.12
  6. Step 6: Final answer
    x = 10,692.77

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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.