Home / 7,845.81-10,827.30-4,309.05

Finding the Fourth Proportional to 7,845.81, 10,827.30 and 4,309.05

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Solution

The fourth proportional to 7,845.81, 10,827.30 and 4,309.05 is: 5,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.81 : 10,827.30 = 4,309.05 : x
  2. Step 2: Convert to fraction form
    7,845.81/10,827.30 = 4,309.05/x
  3. Step 3: Cross multiply
    7,845.81x = 10,827.30 × 4,309.05
  4. Step 4: Simplify right side
    7,845.81x = 46,655,377.07
  5. Step 5: Solve for x
    x = 46,655,377.07/7,845.81
  6. Step 6: Final answer
    x = 5,946.53

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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.