Home / 13,054.61-18,027.38-12,355.47

Finding the Fourth Proportional to 13,054.61, 18,027.38 and 12,355.47

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Solution

The fourth proportional to 13,054.61, 18,027.38 and 12,355.47 is: 17,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.61 : 18,027.38 = 12,355.47 : x
  2. Step 2: Convert to fraction form
    13,054.61/18,027.38 = 12,355.47/x
  3. Step 3: Cross multiply
    13,054.61x = 18,027.38 × 12,355.47
  4. Step 4: Simplify right side
    13,054.61x = 222,736,783.66
  5. Step 5: Solve for x
    x = 222,736,783.66/13,054.61
  6. Step 6: Final answer
    x = 17,061.92

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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.