Home / 14,007.56-21,011.34-3,618.50

Finding the Fourth Proportional to 14,007.56, 21,011.34 and 3,618.50

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Solution

The fourth proportional to 14,007.56, 21,011.34 and 3,618.50 is: 5,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.56 : 21,011.34 = 3,618.50 : x
  2. Step 2: Convert to fraction form
    14,007.56/21,011.34 = 3,618.50/x
  3. Step 3: Cross multiply
    14,007.56x = 21,011.34 × 3,618.50
  4. Step 4: Simplify right side
    14,007.56x = 76,029,533.79
  5. Step 5: Solve for x
    x = 76,029,533.79/14,007.56
  6. Step 6: Final answer
    x = 5,427.75

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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.