Home / 10,365.06-15,538.60-4,815.55

Finding the Fourth Proportional to 10,365.06, 15,538.60 and 4,815.55

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Solution

The fourth proportional to 10,365.06, 15,538.60 and 4,815.55 is: 7,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.06 : 15,538.60 = 4,815.55 : x
  2. Step 2: Convert to fraction form
    10,365.06/15,538.60 = 4,815.55/x
  3. Step 3: Cross multiply
    10,365.06x = 15,538.60 × 4,815.55
  4. Step 4: Simplify right side
    10,365.06x = 74,826,905.23
  5. Step 5: Solve for x
    x = 74,826,905.23/10,365.06
  6. Step 6: Final answer
    x = 7,219.15

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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.