Home / 13,395.74-18,487.24-7,429.34

Finding the Fourth Proportional to 13,395.74, 18,487.24 and 7,429.34

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Solution

The fourth proportional to 13,395.74, 18,487.24 and 7,429.34 is: 10,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.74 : 18,487.24 = 7,429.34 : x
  2. Step 2: Convert to fraction form
    13,395.74/18,487.24 = 7,429.34/x
  3. Step 3: Cross multiply
    13,395.74x = 18,487.24 × 7,429.34
  4. Step 4: Simplify right side
    13,395.74x = 137,347,880.61
  5. Step 5: Solve for x
    x = 137,347,880.61/13,395.74
  6. Step 6: Final answer
    x = 10,253.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.