Home / 9,518.10-13,122.77-7,390.02

Finding the Fourth Proportional to 9,518.10, 13,122.77 and 7,390.02

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Solution

The fourth proportional to 9,518.10, 13,122.77 and 7,390.02 is: 10,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.10 : 13,122.77 = 7,390.02 : x
  2. Step 2: Convert to fraction form
    9,518.10/13,122.77 = 7,390.02/x
  3. Step 3: Cross multiply
    9,518.10x = 13,122.77 × 7,390.02
  4. Step 4: Simplify right side
    9,518.10x = 96,977,532.76
  5. Step 5: Solve for x
    x = 96,977,532.76/9,518.10
  6. Step 6: Final answer
    x = 10,188.75

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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.