Home / 10,147.30-15,210.99-4,880.86

Finding the Fourth Proportional to 10,147.30, 15,210.99 and 4,880.86

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Solution

The fourth proportional to 10,147.30, 15,210.99 and 4,880.86 is: 7,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.30 : 15,210.99 = 4,880.86 : x
  2. Step 2: Convert to fraction form
    10,147.30/15,210.99 = 4,880.86/x
  3. Step 3: Cross multiply
    10,147.30x = 15,210.99 × 4,880.86
  4. Step 4: Simplify right side
    10,147.30x = 74,242,712.65
  5. Step 5: Solve for x
    x = 74,242,712.65/10,147.30
  6. Step 6: Final answer
    x = 7,316.50

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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.