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Finding the Fourth Proportional to 14,807.40, 22,211.10 and 10,919.40

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Solution

The fourth proportional to 14,807.40, 22,211.10 and 10,919.40 is: 16,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807.40 : 22,211.10 = 10,919.40 : x
  2. Step 2: Convert to fraction form
    14,807.40/22,211.10 = 10,919.40/x
  3. Step 3: Cross multiply
    14,807.40x = 22,211.10 × 10,919.40
  4. Step 4: Simplify right side
    14,807.40x = 242,531,885.34
  5. Step 5: Solve for x
    x = 242,531,885.34/14,807.40
  6. Step 6: Final answer
    x = 16,379.10

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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.