Home / 13,457.15-20,185.83-4,692.05

Finding the Fourth Proportional to 13,457.15, 20,185.83 and 4,692.05

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Solution

The fourth proportional to 13,457.15, 20,185.83 and 4,692.05 is: 7,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.15 : 20,185.83 = 4,692.05 : x
  2. Step 2: Convert to fraction form
    13,457.15/20,185.83 = 4,692.05/x
  3. Step 3: Cross multiply
    13,457.15x = 20,185.83 × 4,692.05
  4. Step 4: Simplify right side
    13,457.15x = 94,712,822.72
  5. Step 5: Solve for x
    x = 94,712,822.72/13,457.15
  6. Step 6: Final answer
    x = 7,038.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.