Home / 18,343.96-25,335.45-12,365.35

Finding the Fourth Proportional to 18,343.96, 25,335.45 and 12,365.35

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Solution

The fourth proportional to 18,343.96, 25,335.45 and 12,365.35 is: 17,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.96 : 25,335.45 = 12,365.35 : x
  2. Step 2: Convert to fraction form
    18,343.96/25,335.45 = 12,365.35/x
  3. Step 3: Cross multiply
    18,343.96x = 25,335.45 × 12,365.35
  4. Step 4: Simplify right side
    18,343.96x = 313,281,643.32
  5. Step 5: Solve for x
    x = 313,281,643.32/18,343.96
  6. Step 6: Final answer
    x = 17,078.19

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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.