Home / 7,730.95-10,660.84-6,615.58

Finding the Fourth Proportional to 7,730.95, 10,660.84 and 6,615.58

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Solution

The fourth proportional to 7,730.95, 10,660.84 and 6,615.58 is: 9,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,730.95 : 10,660.84 = 6,615.58 : x
  2. Step 2: Convert to fraction form
    7,730.95/10,660.84 = 6,615.58/x
  3. Step 3: Cross multiply
    7,730.95x = 10,660.84 × 6,615.58
  4. Step 4: Simplify right side
    7,730.95x = 70,527,639.89
  5. Step 5: Solve for x
    x = 70,527,639.89/7,730.95
  6. Step 6: Final answer
    x = 9,122.76

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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.