Home / 8,630.81-12,918.36-4,465.08

Finding the Fourth Proportional to 8,630.81, 12,918.36 and 4,465.08

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Solution

The fourth proportional to 8,630.81, 12,918.36 and 4,465.08 is: 6,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.81 : 12,918.36 = 4,465.08 : x
  2. Step 2: Convert to fraction form
    8,630.81/12,918.36 = 4,465.08/x
  3. Step 3: Cross multiply
    8,630.81x = 12,918.36 × 4,465.08
  4. Step 4: Simplify right side
    8,630.81x = 57,681,510.87
  5. Step 5: Solve for x
    x = 57,681,510.87/8,630.81
  6. Step 6: Final answer
    x = 6,683.21

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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.