Home / 13,984.49-20,970.58-7,409.16

Finding the Fourth Proportional to 13,984.49, 20,970.58 and 7,409.16

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Solution

The fourth proportional to 13,984.49, 20,970.58 and 7,409.16 is: 11,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.49 : 20,970.58 = 7,409.16 : x
  2. Step 2: Convert to fraction form
    13,984.49/20,970.58 = 7,409.16/x
  3. Step 3: Cross multiply
    13,984.49x = 20,970.58 × 7,409.16
  4. Step 4: Simplify right side
    13,984.49x = 155,374,382.51
  5. Step 5: Solve for x
    x = 155,374,382.51/13,984.49
  6. Step 6: Final answer
    x = 11,110.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.