Home / 13,599.84-20,402.64-4,372.32

Finding the Fourth Proportional to 13,599.84, 20,402.64 and 4,372.32

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Solution

The fourth proportional to 13,599.84, 20,402.64 and 4,372.32 is: 6,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.84 : 20,402.64 = 4,372.32 : x
  2. Step 2: Convert to fraction form
    13,599.84/20,402.64 = 4,372.32/x
  3. Step 3: Cross multiply
    13,599.84x = 20,402.64 × 4,372.32
  4. Step 4: Simplify right side
    13,599.84x = 89,206,870.92
  5. Step 5: Solve for x
    x = 89,206,870.92/13,599.84
  6. Step 6: Final answer
    x = 6,559.41

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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.