Home / 13,639.98-20,460.10-4,874.96

Finding the Fourth Proportional to 13,639.98, 20,460.10 and 4,874.96

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Solution

The fourth proportional to 13,639.98, 20,460.10 and 4,874.96 is: 7,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.98 : 20,460.10 = 4,874.96 : x
  2. Step 2: Convert to fraction form
    13,639.98/20,460.10 = 4,874.96/x
  3. Step 3: Cross multiply
    13,639.98x = 20,460.10 × 4,874.96
  4. Step 4: Simplify right side
    13,639.98x = 99,742,169.10
  5. Step 5: Solve for x
    x = 99,742,169.10/13,639.98
  6. Step 6: Final answer
    x = 7,312.49

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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.