Home / 13,090.10-19,706.34-11,927.58

Finding the Fourth Proportional to 13,090.10, 19,706.34 and 11,927.58

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Solution

The fourth proportional to 13,090.10, 19,706.34 and 11,927.58 is: 17,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.10 : 19,706.34 = 11,927.58 : x
  2. Step 2: Convert to fraction form
    13,090.10/19,706.34 = 11,927.58/x
  3. Step 3: Cross multiply
    13,090.10x = 19,706.34 × 11,927.58
  4. Step 4: Simplify right side
    13,090.10x = 235,048,946.86
  5. Step 5: Solve for x
    x = 235,048,946.86/13,090.10
  6. Step 6: Final answer
    x = 17,956.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.