Home / 14,631.84-20,190.60-8,964

Finding the Fourth Proportional to 14,631.84, 20,190.60 and 8,964

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Solution

The fourth proportional to 14,631.84, 20,190.60 and 8,964 is: 12,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.84 : 20,190.60 = 8,964 : x
  2. Step 2: Convert to fraction form
    14,631.84/20,190.60 = 8,964/x
  3. Step 3: Cross multiply
    14,631.84x = 20,190.60 × 8,964
  4. Step 4: Simplify right side
    14,631.84x = 180,988,538.40
  5. Step 5: Solve for x
    x = 180,988,538.40/14,631.84
  6. Step 6: Final answer
    x = 12,369.50

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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.