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Finding the Fourth Proportional to 14,000.15, 21,000.81 and 4,641.01

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Solution

The fourth proportional to 14,000.15, 21,000.81 and 4,641.01 is: 6,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.15 : 21,000.81 = 4,641.01 : x
  2. Step 2: Convert to fraction form
    14,000.15/21,000.81 = 4,641.01/x
  3. Step 3: Cross multiply
    14,000.15x = 21,000.81 × 4,641.01
  4. Step 4: Simplify right side
    14,000.15x = 97,464,969.22
  5. Step 5: Solve for x
    x = 97,464,969.22/14,000.15
  6. Step 6: Final answer
    x = 6,961.71

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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.