Home / 10,219.60-15,343.80-6,331.60

Finding the Fourth Proportional to 10,219.60, 15,343.80 and 6,331.60

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Solution

The fourth proportional to 10,219.60, 15,343.80 and 6,331.60 is: 9,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.60 : 15,343.80 = 6,331.60 : x
  2. Step 2: Convert to fraction form
    10,219.60/15,343.80 = 6,331.60/x
  3. Step 3: Cross multiply
    10,219.60x = 15,343.80 × 6,331.60
  4. Step 4: Simplify right side
    10,219.60x = 97,150,804.08
  5. Step 5: Solve for x
    x = 97,150,804.08/10,219.60
  6. Step 6: Final answer
    x = 9,506.32

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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.