Home / 13,875.50-20,814.38-4,515.32

Finding the Fourth Proportional to 13,875.50, 20,814.38 and 4,515.32

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Solution

The fourth proportional to 13,875.50, 20,814.38 and 4,515.32 is: 6,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.50 : 20,814.38 = 4,515.32 : x
  2. Step 2: Convert to fraction form
    13,875.50/20,814.38 = 4,515.32/x
  3. Step 3: Cross multiply
    13,875.50x = 20,814.38 × 4,515.32
  4. Step 4: Simplify right side
    13,875.50x = 93,983,459.65
  5. Step 5: Solve for x
    x = 93,983,459.65/13,875.50
  6. Step 6: Final answer
    x = 6,773.34

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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.