Home / 8,953.65-12,355.43-4,920.76

Finding the Fourth Proportional to 8,953.65, 12,355.43 and 4,920.76

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Solution

The fourth proportional to 8,953.65, 12,355.43 and 4,920.76 is: 6,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.65 : 12,355.43 = 4,920.76 : x
  2. Step 2: Convert to fraction form
    8,953.65/12,355.43 = 4,920.76/x
  3. Step 3: Cross multiply
    8,953.65x = 12,355.43 × 4,920.76
  4. Step 4: Simplify right side
    8,953.65x = 60,798,148.54
  5. Step 5: Solve for x
    x = 60,798,148.54/8,953.65
  6. Step 6: Final answer
    x = 6,790.32

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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.