Home / 9,915.42-13,692.54-6,384.84

Finding the Fourth Proportional to 9,915.42, 13,692.54 and 6,384.84

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Solution

The fourth proportional to 9,915.42, 13,692.54 and 6,384.84 is: 8,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.42 : 13,692.54 = 6,384.84 : x
  2. Step 2: Convert to fraction form
    9,915.42/13,692.54 = 6,384.84/x
  3. Step 3: Cross multiply
    9,915.42x = 13,692.54 × 6,384.84
  4. Step 4: Simplify right side
    9,915.42x = 87,424,677.09
  5. Step 5: Solve for x
    x = 87,424,677.09/9,915.42
  6. Step 6: Final answer
    x = 8,817.04

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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.