Home / 13,058.83-18,021.32-7,090.55

Finding the Fourth Proportional to 13,058.83, 18,021.32 and 7,090.55

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Solution

The fourth proportional to 13,058.83, 18,021.32 and 7,090.55 is: 9,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.83 : 18,021.32 = 7,090.55 : x
  2. Step 2: Convert to fraction form
    13,058.83/18,021.32 = 7,090.55/x
  3. Step 3: Cross multiply
    13,058.83x = 18,021.32 × 7,090.55
  4. Step 4: Simplify right side
    13,058.83x = 127,781,070.53
  5. Step 5: Solve for x
    x = 127,781,070.53/13,058.83
  6. Step 6: Final answer
    x = 9,785.03

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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.