Home / 8,316.14-12,480.12-4,621.34

Finding the Fourth Proportional to 8,316.14, 12,480.12 and 4,621.34

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Solution

The fourth proportional to 8,316.14, 12,480.12 and 4,621.34 is: 6,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.14 : 12,480.12 = 4,621.34 : x
  2. Step 2: Convert to fraction form
    8,316.14/12,480.12 = 4,621.34/x
  3. Step 3: Cross multiply
    8,316.14x = 12,480.12 × 4,621.34
  4. Step 4: Simplify right side
    8,316.14x = 57,674,877.76
  5. Step 5: Solve for x
    x = 57,674,877.76/8,316.14
  6. Step 6: Final answer
    x = 6,935.29

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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.