Home / 8,436.18-12,638.01-4,727.19

Finding the Fourth Proportional to 8,436.18, 12,638.01 and 4,727.19

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Solution

The fourth proportional to 8,436.18, 12,638.01 and 4,727.19 is: 7,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.18 : 12,638.01 = 4,727.19 : x
  2. Step 2: Convert to fraction form
    8,436.18/12,638.01 = 4,727.19/x
  3. Step 3: Cross multiply
    8,436.18x = 12,638.01 × 4,727.19
  4. Step 4: Simplify right side
    8,436.18x = 59,742,274.49
  5. Step 5: Solve for x
    x = 59,742,274.49/8,436.18
  6. Step 6: Final answer
    x = 7,081.67

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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.