Home / 8,931.40-12,325.46-5,393.96

Finding the Fourth Proportional to 8,931.40, 12,325.46 and 5,393.96

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Solution

The fourth proportional to 8,931.40, 12,325.46 and 5,393.96 is: 7,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.40 : 12,325.46 = 5,393.96 : x
  2. Step 2: Convert to fraction form
    8,931.40/12,325.46 = 5,393.96/x
  3. Step 3: Cross multiply
    8,931.40x = 12,325.46 × 5,393.96
  4. Step 4: Simplify right side
    8,931.40x = 66,483,038.22
  5. Step 5: Solve for x
    x = 66,483,038.22/8,931.40
  6. Step 6: Final answer
    x = 7,443.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.