Home / 12,281.28-16,948.64-6,692.32

Finding the Fourth Proportional to 12,281.28, 16,948.64 and 6,692.32

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Solution

The fourth proportional to 12,281.28, 16,948.64 and 6,692.32 is: 9,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.28 : 16,948.64 = 6,692.32 : x
  2. Step 2: Convert to fraction form
    12,281.28/16,948.64 = 6,692.32/x
  3. Step 3: Cross multiply
    12,281.28x = 16,948.64 × 6,692.32
  4. Step 4: Simplify right side
    12,281.28x = 113,425,722.44
  5. Step 5: Solve for x
    x = 113,425,722.44/12,281.28
  6. Step 6: Final answer
    x = 9,235.66

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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.