Home / 11,199.02-15,459.42-7,970.92

Finding the Fourth Proportional to 11,199.02, 15,459.42 and 7,970.92

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Solution

The fourth proportional to 11,199.02, 15,459.42 and 7,970.92 is: 11,003.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.02 : 15,459.42 = 7,970.92 : x
  2. Step 2: Convert to fraction form
    11,199.02/15,459.42 = 7,970.92/x
  3. Step 3: Cross multiply
    11,199.02x = 15,459.42 × 7,970.92
  4. Step 4: Simplify right side
    11,199.02x = 123,225,800.07
  5. Step 5: Solve for x
    x = 123,225,800.07/11,199.02
  6. Step 6: Final answer
    x = 11,003.27

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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.