Home / 9,875.70-13,629.74-5,628.29

Finding the Fourth Proportional to 9,875.70, 13,629.74 and 5,628.29

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Solution

The fourth proportional to 9,875.70, 13,629.74 and 5,628.29 is: 7,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.70 : 13,629.74 = 5,628.29 : x
  2. Step 2: Convert to fraction form
    9,875.70/13,629.74 = 5,628.29/x
  3. Step 3: Cross multiply
    9,875.70x = 13,629.74 × 5,628.29
  4. Step 4: Simplify right side
    9,875.70x = 76,712,033.05
  5. Step 5: Solve for x
    x = 76,712,033.05/9,875.70
  6. Step 6: Final answer
    x = 7,767.76

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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.