Home / 12,281.28-16,948-6,692.16

Finding the Fourth Proportional to 12,281.28, 16,948 and 6,692.16

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Solution

The fourth proportional to 12,281.28, 16,948 and 6,692.16 is: 9,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.28 : 16,948 = 6,692.16 : x
  2. Step 2: Convert to fraction form
    12,281.28/16,948 = 6,692.16/x
  3. Step 3: Cross multiply
    12,281.28x = 16,948 × 6,692.16
  4. Step 4: Simplify right side
    12,281.28x = 113,418,727.68
  5. Step 5: Solve for x
    x = 113,418,727.68/12,281.28
  6. Step 6: Final answer
    x = 9,235.09

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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.