Home / 13,539.60-18,692.72-8,508.08

Finding the Fourth Proportional to 13,539.60, 18,692.72 and 8,508.08

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Solution

The fourth proportional to 13,539.60, 18,692.72 and 8,508.08 is: 11,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.60 : 18,692.72 = 8,508.08 : x
  2. Step 2: Convert to fraction form
    13,539.60/18,692.72 = 8,508.08/x
  3. Step 3: Cross multiply
    13,539.60x = 18,692.72 × 8,508.08
  4. Step 4: Simplify right side
    13,539.60x = 159,039,157.18
  5. Step 5: Solve for x
    x = 159,039,157.18/13,539.60
  6. Step 6: Final answer
    x = 11,746.22

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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.