Home / 13,230.36-18,256.56-7,925.04

Finding the Fourth Proportional to 13,230.36, 18,256.56 and 7,925.04

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Solution

The fourth proportional to 13,230.36, 18,256.56 and 7,925.04 is: 10,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.36 : 18,256.56 = 7,925.04 : x
  2. Step 2: Convert to fraction form
    13,230.36/18,256.56 = 7,925.04/x
  3. Step 3: Cross multiply
    13,230.36x = 18,256.56 × 7,925.04
  4. Step 4: Simplify right side
    13,230.36x = 144,683,968.26
  5. Step 5: Solve for x
    x = 144,683,968.26/13,230.36
  6. Step 6: Final answer
    x = 10,935.75

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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.