Home / 13,545.55-18,692.89-7,577.16

Finding the Fourth Proportional to 13,545.55, 18,692.89 and 7,577.16

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Solution

The fourth proportional to 13,545.55, 18,692.89 and 7,577.16 is: 10,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.55 : 18,692.89 = 7,577.16 : x
  2. Step 2: Convert to fraction form
    13,545.55/18,692.89 = 7,577.16/x
  3. Step 3: Cross multiply
    13,545.55x = 18,692.89 × 7,577.16
  4. Step 4: Simplify right side
    13,545.55x = 141,639,077.12
  5. Step 5: Solve for x
    x = 141,639,077.12/13,545.55
  6. Step 6: Final answer
    x = 10,456.51

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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.