Home / 11,133.81-15,357.84-8,740.19

Finding the Fourth Proportional to 11,133.81, 15,357.84 and 8,740.19

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Solution

The fourth proportional to 11,133.81, 15,357.84 and 8,740.19 is: 12,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.81 : 15,357.84 = 8,740.19 : x
  2. Step 2: Convert to fraction form
    11,133.81/15,357.84 = 8,740.19/x
  3. Step 3: Cross multiply
    11,133.81x = 15,357.84 × 8,740.19
  4. Step 4: Simplify right side
    11,133.81x = 134,230,362.80
  5. Step 5: Solve for x
    x = 134,230,362.80/11,133.81
  6. Step 6: Final answer
    x = 12,056.10

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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.