Home / 13,545.12-18,692.57-7,577.45

Finding the Fourth Proportional to 13,545.12, 18,692.57 and 7,577.45

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Solution

The fourth proportional to 13,545.12, 18,692.57 and 7,577.45 is: 10,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.12 : 18,692.57 = 7,577.45 : x
  2. Step 2: Convert to fraction form
    13,545.12/18,692.57 = 7,577.45/x
  3. Step 3: Cross multiply
    13,545.12x = 18,692.57 × 7,577.45
  4. Step 4: Simplify right side
    13,545.12x = 141,642,010.12
  5. Step 5: Solve for x
    x = 141,642,010.12/13,545.12
  6. Step 6: Final answer
    x = 10,457.05

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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.