Home / 7,813.48-10,781.70-4,276.36

Finding the Fourth Proportional to 7,813.48, 10,781.70 and 4,276.36

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Solution

The fourth proportional to 7,813.48, 10,781.70 and 4,276.36 is: 5,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.48 : 10,781.70 = 4,276.36 : x
  2. Step 2: Convert to fraction form
    7,813.48/10,781.70 = 4,276.36/x
  3. Step 3: Cross multiply
    7,813.48x = 10,781.70 × 4,276.36
  4. Step 4: Simplify right side
    7,813.48x = 46,106,430.61
  5. Step 5: Solve for x
    x = 46,106,430.61/7,813.48
  6. Step 6: Final answer
    x = 5,900.88

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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.