Home / 18,670.16-25,777.48-13,071.44

Finding the Fourth Proportional to 18,670.16, 25,777.48 and 13,071.44

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Solution

The fourth proportional to 18,670.16, 25,777.48 and 13,071.44 is: 18,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.16 : 25,777.48 = 13,071.44 : x
  2. Step 2: Convert to fraction form
    18,670.16/25,777.48 = 13,071.44/x
  3. Step 3: Cross multiply
    18,670.16x = 25,777.48 × 13,071.44
  4. Step 4: Simplify right side
    18,670.16x = 336,948,783.17
  5. Step 5: Solve for x
    x = 336,948,783.17/18,670.16
  6. Step 6: Final answer
    x = 18,047.45

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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.