Home / 9,320.40-13,968.45-6,720.30

Finding the Fourth Proportional to 9,320.40, 13,968.45 and 6,720.30

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Solution

The fourth proportional to 9,320.40, 13,968.45 and 6,720.30 is: 10,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.40 : 13,968.45 = 6,720.30 : x
  2. Step 2: Convert to fraction form
    9,320.40/13,968.45 = 6,720.30/x
  3. Step 3: Cross multiply
    9,320.40x = 13,968.45 × 6,720.30
  4. Step 4: Simplify right side
    9,320.40x = 93,872,174.54
  5. Step 5: Solve for x
    x = 93,872,174.54/9,320.40
  6. Step 6: Final answer
    x = 10,071.69

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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.