Home / 10,638.54-15,957.80-4,788.32

Finding the Fourth Proportional to 10,638.54, 15,957.80 and 4,788.32

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Solution

The fourth proportional to 10,638.54, 15,957.80 and 4,788.32 is: 7,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.54 : 15,957.80 = 4,788.32 : x
  2. Step 2: Convert to fraction form
    10,638.54/15,957.80 = 4,788.32/x
  3. Step 3: Cross multiply
    10,638.54x = 15,957.80 × 4,788.32
  4. Step 4: Simplify right side
    10,638.54x = 76,410,985.08
  5. Step 5: Solve for x
    x = 76,410,985.08/10,638.54
  6. Step 6: Final answer
    x = 7,182.47

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Similar ratio
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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.