Home / 9,771.84-13,485.15-5,295.55

Finding the Fourth Proportional to 9,771.84, 13,485.15 and 5,295.55

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Solution

The fourth proportional to 9,771.84, 13,485.15 and 5,295.55 is: 7,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.84 : 13,485.15 = 5,295.55 : x
  2. Step 2: Convert to fraction form
    9,771.84/13,485.15 = 5,295.55/x
  3. Step 3: Cross multiply
    9,771.84x = 13,485.15 × 5,295.55
  4. Step 4: Simplify right side
    9,771.84x = 71,411,319.80
  5. Step 5: Solve for x
    x = 71,411,319.80/9,771.84
  6. Step 6: Final answer
    x = 7,307.87

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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.