Home / 26,848.60-40,269.74-7,128.68

Finding the Fourth Proportional to 26,848.60, 40,269.74 and 7,128.68

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Solution

The fourth proportional to 26,848.60, 40,269.74 and 7,128.68 is: 10,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,848.60 : 40,269.74 = 7,128.68 : x
  2. Step 2: Convert to fraction form
    26,848.60/40,269.74 = 7,128.68/x
  3. Step 3: Cross multiply
    26,848.60x = 40,269.74 × 7,128.68
  4. Step 4: Simplify right side
    26,848.60x = 287,069,893.25
  5. Step 5: Solve for x
    x = 287,069,893.25/26,848.60
  6. Step 6: Final answer
    x = 10,692.17

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1.5x scale

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.