Home / 7,813.55-10,782.15-4,276.69

Finding the Fourth Proportional to 7,813.55, 10,782.15 and 4,276.69

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Solution

The fourth proportional to 7,813.55, 10,782.15 and 4,276.69 is: 5,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.55 : 10,782.15 = 4,276.69 : x
  2. Step 2: Convert to fraction form
    7,813.55/10,782.15 = 4,276.69/x
  3. Step 3: Cross multiply
    7,813.55x = 10,782.15 × 4,276.69
  4. Step 4: Simplify right side
    7,813.55x = 46,111,913.08
  5. Step 5: Solve for x
    x = 46,111,913.08/7,813.55
  6. Step 6: Final answer
    x = 5,901.53

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Half scale
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Double scale
Find fourth proportional to 7,814.55, 10,783.53 and 4,277.69
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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.