Home / 13,100.94-18,039.26-9,875.45

Finding the Fourth Proportional to 13,100.94, 18,039.26 and 9,875.45

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Solution

The fourth proportional to 13,100.94, 18,039.26 and 9,875.45 is: 13,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.94 : 18,039.26 = 9,875.45 : x
  2. Step 2: Convert to fraction form
    13,100.94/18,039.26 = 9,875.45/x
  3. Step 3: Cross multiply
    13,100.94x = 18,039.26 × 9,875.45
  4. Step 4: Simplify right side
    13,100.94x = 178,145,670.59
  5. Step 5: Solve for x
    x = 178,145,670.59/13,100.94
  6. Step 6: Final answer
    x = 13,597.93

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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.