Home / 8,680.48-13,005.06-7,302.40

Finding the Fourth Proportional to 8,680.48, 13,005.06 and 7,302.40

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Solution

The fourth proportional to 8,680.48, 13,005.06 and 7,302.40 is: 10,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.48 : 13,005.06 = 7,302.40 : x
  2. Step 2: Convert to fraction form
    8,680.48/13,005.06 = 7,302.40/x
  3. Step 3: Cross multiply
    8,680.48x = 13,005.06 × 7,302.40
  4. Step 4: Simplify right side
    8,680.48x = 94,968,150.14
  5. Step 5: Solve for x
    x = 94,968,150.14/8,680.48
  6. Step 6: Final answer
    x = 10,940.43

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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.