Home / 13,972.32-19,290.02-8,670.06

Finding the Fourth Proportional to 13,972.32, 19,290.02 and 8,670.06

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Solution

The fourth proportional to 13,972.32, 19,290.02 and 8,670.06 is: 11,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.32 : 19,290.02 = 8,670.06 : x
  2. Step 2: Convert to fraction form
    13,972.32/19,290.02 = 8,670.06/x
  3. Step 3: Cross multiply
    13,972.32x = 19,290.02 × 8,670.06
  4. Step 4: Simplify right side
    13,972.32x = 167,245,587.45
  5. Step 5: Solve for x
    x = 167,245,587.45/13,972.32
  6. Step 6: Final answer
    x = 11,969.78

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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.