Home / 13,490.49-20,235.74-7,253.44

Finding the Fourth Proportional to 13,490.49, 20,235.74 and 7,253.44

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Solution

The fourth proportional to 13,490.49, 20,235.74 and 7,253.44 is: 10,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.49 : 20,235.74 = 7,253.44 : x
  2. Step 2: Convert to fraction form
    13,490.49/20,235.74 = 7,253.44/x
  3. Step 3: Cross multiply
    13,490.49x = 20,235.74 × 7,253.44
  4. Step 4: Simplify right side
    13,490.49x = 146,778,689.68
  5. Step 5: Solve for x
    x = 146,778,689.68/13,490.49
  6. Step 6: Final answer
    x = 10,880.16

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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.