Home / 8,585.10-12,869.38-3,316.23

Finding the Fourth Proportional to 8,585.10, 12,869.38 and 3,316.23

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Solution

The fourth proportional to 8,585.10, 12,869.38 and 3,316.23 is: 4,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.10 : 12,869.38 = 3,316.23 : x
  2. Step 2: Convert to fraction form
    8,585.10/12,869.38 = 3,316.23/x
  3. Step 3: Cross multiply
    8,585.10x = 12,869.38 × 3,316.23
  4. Step 4: Simplify right side
    8,585.10x = 42,677,824.04
  5. Step 5: Solve for x
    x = 42,677,824.04/8,585.10
  6. Step 6: Final answer
    x = 4,971.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.