Home / 14,004.60-21,007.35-5,240.40

Finding the Fourth Proportional to 14,004.60, 21,007.35 and 5,240.40

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Solution

The fourth proportional to 14,004.60, 21,007.35 and 5,240.40 is: 7,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.60 : 21,007.35 = 5,240.40 : x
  2. Step 2: Convert to fraction form
    14,004.60/21,007.35 = 5,240.40/x
  3. Step 3: Cross multiply
    14,004.60x = 21,007.35 × 5,240.40
  4. Step 4: Simplify right side
    14,004.60x = 110,086,916.94
  5. Step 5: Solve for x
    x = 110,086,916.94/14,004.60
  6. Step 6: Final answer
    x = 7,860.77

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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.