Home / 13,153.34-18,152.04-7,185.36

Finding the Fourth Proportional to 13,153.34, 18,152.04 and 7,185.36

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Solution

The fourth proportional to 13,153.34, 18,152.04 and 7,185.36 is: 9,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.34 : 18,152.04 = 7,185.36 : x
  2. Step 2: Convert to fraction form
    13,153.34/18,152.04 = 7,185.36/x
  3. Step 3: Cross multiply
    13,153.34x = 18,152.04 × 7,185.36
  4. Step 4: Simplify right side
    13,153.34x = 130,428,942.13
  5. Step 5: Solve for x
    x = 130,428,942.13/13,153.34
  6. Step 6: Final answer
    x = 9,916.03

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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.