Home / 8,319.75-11,479.95-4,782.30

Finding the Fourth Proportional to 8,319.75, 11,479.95 and 4,782.30

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Solution

The fourth proportional to 8,319.75, 11,479.95 and 4,782.30 is: 6,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.75 : 11,479.95 = 4,782.30 : x
  2. Step 2: Convert to fraction form
    8,319.75/11,479.95 = 4,782.30/x
  3. Step 3: Cross multiply
    8,319.75x = 11,479.95 × 4,782.30
  4. Step 4: Simplify right side
    8,319.75x = 54,900,564.89
  5. Step 5: Solve for x
    x = 54,900,564.89/8,319.75
  6. Step 6: Final answer
    x = 6,598.82

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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.