Home / 8,722.89-12,038.60-4,895.58

Finding the Fourth Proportional to 8,722.89, 12,038.60 and 4,895.58

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Solution

The fourth proportional to 8,722.89, 12,038.60 and 4,895.58 is: 6,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.89 : 12,038.60 = 4,895.58 : x
  2. Step 2: Convert to fraction form
    8,722.89/12,038.60 = 4,895.58/x
  3. Step 3: Cross multiply
    8,722.89x = 12,038.60 × 4,895.58
  4. Step 4: Simplify right side
    8,722.89x = 58,935,929.39
  5. Step 5: Solve for x
    x = 58,935,929.39/8,722.89
  6. Step 6: Final answer
    x = 6,756.47

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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.