Home / 26,120.04-39,186.69-12,090.18

Finding the Fourth Proportional to 26,120.04, 39,186.69 and 12,090.18

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Solution

The fourth proportional to 26,120.04, 39,186.69 and 12,090.18 is: 18,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.04 : 39,186.69 = 12,090.18 : x
  2. Step 2: Convert to fraction form
    26,120.04/39,186.69 = 12,090.18/x
  3. Step 3: Cross multiply
    26,120.04x = 39,186.69 × 12,090.18
  4. Step 4: Simplify right side
    26,120.04x = 473,774,237.32
  5. Step 5: Solve for x
    x = 473,774,237.32/26,120.04
  6. Step 6: Final answer
    x = 18,138.35

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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.