Home / 9,328.16-12,870.70-6,811.62

Finding the Fourth Proportional to 9,328.16, 12,870.70 and 6,811.62

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Solution

The fourth proportional to 9,328.16, 12,870.70 and 6,811.62 is: 9,398.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.16 : 12,870.70 = 6,811.62 : x
  2. Step 2: Convert to fraction form
    9,328.16/12,870.70 = 6,811.62/x
  3. Step 3: Cross multiply
    9,328.16x = 12,870.70 × 6,811.62
  4. Step 4: Simplify right side
    9,328.16x = 87,670,300.50
  5. Step 5: Solve for x
    x = 87,670,300.50/9,328.16
  6. Step 6: Final answer
    x = 9,398.46

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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.