Home / 9,315.18-12,852.75-6,295.92

Finding the Fourth Proportional to 9,315.18, 12,852.75 and 6,295.92

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Solution

The fourth proportional to 9,315.18, 12,852.75 and 6,295.92 is: 8,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.18 : 12,852.75 = 6,295.92 : x
  2. Step 2: Convert to fraction form
    9,315.18/12,852.75 = 6,295.92/x
  3. Step 3: Cross multiply
    9,315.18x = 12,852.75 × 6,295.92
  4. Step 4: Simplify right side
    9,315.18x = 80,919,957.59
  5. Step 5: Solve for x
    x = 80,919,957.59/9,315.18
  6. Step 6: Final answer
    x = 8,686.89

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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.