Home / 13,692.04-18,890.58-7,641.30

Finding the Fourth Proportional to 13,692.04, 18,890.58 and 7,641.30

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Solution

The fourth proportional to 13,692.04, 18,890.58 and 7,641.30 is: 10,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.04 : 18,890.58 = 7,641.30 : x
  2. Step 2: Convert to fraction form
    13,692.04/18,890.58 = 7,641.30/x
  3. Step 3: Cross multiply
    13,692.04x = 18,890.58 × 7,641.30
  4. Step 4: Simplify right side
    13,692.04x = 144,348,688.45
  5. Step 5: Solve for x
    x = 144,348,688.45/13,692.04
  6. Step 6: Final answer
    x = 10,542.53

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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.