Home / 12,081.29-18,126.54-4,690.93

Finding the Fourth Proportional to 12,081.29, 18,126.54 and 4,690.93

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Solution

The fourth proportional to 12,081.29, 18,126.54 and 4,690.93 is: 7,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.29 : 18,126.54 = 4,690.93 : x
  2. Step 2: Convert to fraction form
    12,081.29/18,126.54 = 4,690.93/x
  3. Step 3: Cross multiply
    12,081.29x = 18,126.54 × 4,690.93
  4. Step 4: Simplify right side
    12,081.29x = 85,030,330.28
  5. Step 5: Solve for x
    x = 85,030,330.28/12,081.29
  6. Step 6: Final answer
    x = 7,038.19

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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.