Home / 14,015.71-21,023.64-4,155.07

Finding the Fourth Proportional to 14,015.71, 21,023.64 and 4,155.07

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Solution

The fourth proportional to 14,015.71, 21,023.64 and 4,155.07 is: 6,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.71 : 21,023.64 = 4,155.07 : x
  2. Step 2: Convert to fraction form
    14,015.71/21,023.64 = 4,155.07/x
  3. Step 3: Cross multiply
    14,015.71x = 21,023.64 × 4,155.07
  4. Step 4: Simplify right side
    14,015.71x = 87,354,590.74
  5. Step 5: Solve for x
    x = 87,354,590.74/14,015.71
  6. Step 6: Final answer
    x = 6,232.62

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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.