Home / 8,724.89-12,040.61-4,948.21

Finding the Fourth Proportional to 8,724.89, 12,040.61 and 4,948.21

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Solution

The fourth proportional to 8,724.89, 12,040.61 and 4,948.21 is: 6,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.89 : 12,040.61 = 4,948.21 : x
  2. Step 2: Convert to fraction form
    8,724.89/12,040.61 = 4,948.21/x
  3. Step 3: Cross multiply
    8,724.89x = 12,040.61 × 4,948.21
  4. Step 4: Simplify right side
    8,724.89x = 59,579,466.81
  5. Step 5: Solve for x
    x = 59,579,466.81/8,724.89
  6. Step 6: Final answer
    x = 6,828.68

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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.