Home / 14,017.08-21,000.72-12,491.64

Finding the Fourth Proportional to 14,017.08, 21,000.72 and 12,491.64

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Solution

The fourth proportional to 14,017.08, 21,000.72 and 12,491.64 is: 18,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.08 : 21,000.72 = 12,491.64 : x
  2. Step 2: Convert to fraction form
    14,017.08/21,000.72 = 12,491.64/x
  3. Step 3: Cross multiply
    14,017.08x = 21,000.72 × 12,491.64
  4. Step 4: Simplify right side
    14,017.08x = 262,333,433.98
  5. Step 5: Solve for x
    x = 262,333,433.98/14,017.08
  6. Step 6: Final answer
    x = 18,715.27

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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.