Home / 14,004.15-21,000.15-4,640.55

Finding the Fourth Proportional to 14,004.15, 21,000.15 and 4,640.55

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Solution

The fourth proportional to 14,004.15, 21,000.15 and 4,640.55 is: 6,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.15 : 21,000.15 = 4,640.55 : x
  2. Step 2: Convert to fraction form
    14,004.15/21,000.15 = 4,640.55/x
  3. Step 3: Cross multiply
    14,004.15x = 21,000.15 × 4,640.55
  4. Step 4: Simplify right side
    14,004.15x = 97,452,246.08
  5. Step 5: Solve for x
    x = 97,452,246.08/14,004.15
  6. Step 6: Final answer
    x = 6,958.81

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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.