Home / 8,561.90-11,812.77-4,784.55

Finding the Fourth Proportional to 8,561.90, 11,812.77 and 4,784.55

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Solution

The fourth proportional to 8,561.90, 11,812.77 and 4,784.55 is: 6,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.90 : 11,812.77 = 4,784.55 : x
  2. Step 2: Convert to fraction form
    8,561.90/11,812.77 = 4,784.55/x
  3. Step 3: Cross multiply
    8,561.90x = 11,812.77 × 4,784.55
  4. Step 4: Simplify right side
    8,561.90x = 56,518,788.70
  5. Step 5: Solve for x
    x = 56,518,788.70/8,561.90
  6. Step 6: Final answer
    x = 6,601.20

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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.