Home / 10,321.36-15,482.76-4,478.32

Finding the Fourth Proportional to 10,321.36, 15,482.76 and 4,478.32

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Solution

The fourth proportional to 10,321.36, 15,482.76 and 4,478.32 is: 6,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.36 : 15,482.76 = 4,478.32 : x
  2. Step 2: Convert to fraction form
    10,321.36/15,482.76 = 4,478.32/x
  3. Step 3: Cross multiply
    10,321.36x = 15,482.76 × 4,478.32
  4. Step 4: Simplify right side
    10,321.36x = 69,336,753.76
  5. Step 5: Solve for x
    x = 69,336,753.76/10,321.36
  6. Step 6: Final answer
    x = 6,717.79

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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.