Home / 10,208.30-15,312.52-2,813.16

Finding the Fourth Proportional to 10,208.30, 15,312.52 and 2,813.16

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Solution

The fourth proportional to 10,208.30, 15,312.52 and 2,813.16 is: 4,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.30 : 15,312.52 = 2,813.16 : x
  2. Step 2: Convert to fraction form
    10,208.30/15,312.52 = 2,813.16/x
  3. Step 3: Cross multiply
    10,208.30x = 15,312.52 × 2,813.16
  4. Step 4: Simplify right side
    10,208.30x = 43,076,568.76
  5. Step 5: Solve for x
    x = 43,076,568.76/10,208.30
  6. Step 6: Final answer
    x = 4,219.76

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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.