Home / 13,180.40-18,085.04-13,056.56

Finding the Fourth Proportional to 13,180.40, 18,085.04 and 13,056.56

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Solution

The fourth proportional to 13,180.40, 18,085.04 and 13,056.56 is: 17,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.40 : 18,085.04 = 13,056.56 : x
  2. Step 2: Convert to fraction form
    13,180.40/18,085.04 = 13,056.56/x
  3. Step 3: Cross multiply
    13,180.40x = 18,085.04 × 13,056.56
  4. Step 4: Simplify right side
    13,180.40x = 236,128,409.86
  5. Step 5: Solve for x
    x = 236,128,409.86/13,180.40
  6. Step 6: Final answer
    x = 17,915.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.