Home / 10,466.20-15,683.10-6,999.40

Finding the Fourth Proportional to 10,466.20, 15,683.10 and 6,999.40

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Solution

The fourth proportional to 10,466.20, 15,683.10 and 6,999.40 is: 10,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,466.20 : 15,683.10 = 6,999.40 : x
  2. Step 2: Convert to fraction form
    10,466.20/15,683.10 = 6,999.40/x
  3. Step 3: Cross multiply
    10,466.20x = 15,683.10 × 6,999.40
  4. Step 4: Simplify right side
    10,466.20x = 109,772,290.14
  5. Step 5: Solve for x
    x = 109,772,290.14/10,466.20
  6. Step 6: Final answer
    x = 10,488.27

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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.