Home / 13,014.28-17,965.02-7,979.32

Finding the Fourth Proportional to 13,014.28, 17,965.02 and 7,979.32

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Solution

The fourth proportional to 13,014.28, 17,965.02 and 7,979.32 is: 11,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.28 : 17,965.02 = 7,979.32 : x
  2. Step 2: Convert to fraction form
    13,014.28/17,965.02 = 7,979.32/x
  3. Step 3: Cross multiply
    13,014.28x = 17,965.02 × 7,979.32
  4. Step 4: Simplify right side
    13,014.28x = 143,348,643.39
  5. Step 5: Solve for x
    x = 143,348,643.39/13,014.28
  6. Step 6: Final answer
    x = 11,014.72

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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.