Home / 7,709.22-10,639.06-4,875.58

Finding the Fourth Proportional to 7,709.22, 10,639.06 and 4,875.58

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Solution

The fourth proportional to 7,709.22, 10,639.06 and 4,875.58 is: 6,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.22 : 10,639.06 = 4,875.58 : x
  2. Step 2: Convert to fraction form
    7,709.22/10,639.06 = 4,875.58/x
  3. Step 3: Cross multiply
    7,709.22x = 10,639.06 × 4,875.58
  4. Step 4: Simplify right side
    7,709.22x = 51,871,588.15
  5. Step 5: Solve for x
    x = 51,871,588.15/7,709.22
  6. Step 6: Final answer
    x = 6,728.51

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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.