Home / 7,847.84-10,830.88-5,017.80

Finding the Fourth Proportional to 7,847.84, 10,830.88 and 5,017.80

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Solution

The fourth proportional to 7,847.84, 10,830.88 and 5,017.80 is: 6,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.84 : 10,830.88 = 5,017.80 : x
  2. Step 2: Convert to fraction form
    7,847.84/10,830.88 = 5,017.80/x
  3. Step 3: Cross multiply
    7,847.84x = 10,830.88 × 5,017.80
  4. Step 4: Simplify right side
    7,847.84x = 54,347,189.66
  5. Step 5: Solve for x
    x = 54,347,189.66/7,847.84
  6. Step 6: Final answer
    x = 6,925.11

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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.