Home / 7,785.51-10,744.31-4,428.63

Finding the Fourth Proportional to 7,785.51, 10,744.31 and 4,428.63

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Solution

The fourth proportional to 7,785.51, 10,744.31 and 4,428.63 is: 6,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.51 : 10,744.31 = 4,428.63 : x
  2. Step 2: Convert to fraction form
    7,785.51/10,744.31 = 4,428.63/x
  3. Step 3: Cross multiply
    7,785.51x = 10,744.31 × 4,428.63
  4. Step 4: Simplify right side
    7,785.51x = 47,582,573.60
  5. Step 5: Solve for x
    x = 47,582,573.60/7,785.51
  6. Step 6: Final answer
    x = 6,111.68

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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.