Home / 8,930.10-12,325.83-5,395.74

Finding the Fourth Proportional to 8,930.10, 12,325.83 and 5,395.74

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Solution

The fourth proportional to 8,930.10, 12,325.83 and 5,395.74 is: 7,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.10 : 12,325.83 = 5,395.74 : x
  2. Step 2: Convert to fraction form
    8,930.10/12,325.83 = 5,395.74/x
  3. Step 3: Cross multiply
    8,930.10x = 12,325.83 × 5,395.74
  4. Step 4: Simplify right side
    8,930.10x = 66,506,973.96
  5. Step 5: Solve for x
    x = 66,506,973.96/8,930.10
  6. Step 6: Final answer
    x = 7,447.51

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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.