Home / 12,091.16-18,130.80-7,094.81

Finding the Fourth Proportional to 12,091.16, 18,130.80 and 7,094.81

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Solution

The fourth proportional to 12,091.16, 18,130.80 and 7,094.81 is: 10,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.16 : 18,130.80 = 7,094.81 : x
  2. Step 2: Convert to fraction form
    12,091.16/18,130.80 = 7,094.81/x
  3. Step 3: Cross multiply
    12,091.16x = 18,130.80 × 7,094.81
  4. Step 4: Simplify right side
    12,091.16x = 128,634,581.15
  5. Step 5: Solve for x
    x = 128,634,581.15/12,091.16
  6. Step 6: Final answer
    x = 10,638.73

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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.