Home / 10,428.08-15,642.60-3,853.04

Finding the Fourth Proportional to 10,428.08, 15,642.60 and 3,853.04

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Solution

The fourth proportional to 10,428.08, 15,642.60 and 3,853.04 is: 5,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.08 : 15,642.60 = 3,853.04 : x
  2. Step 2: Convert to fraction form
    10,428.08/15,642.60 = 3,853.04/x
  3. Step 3: Cross multiply
    10,428.08x = 15,642.60 × 3,853.04
  4. Step 4: Simplify right side
    10,428.08x = 60,271,563.50
  5. Step 5: Solve for x
    x = 60,271,563.50/10,428.08
  6. Step 6: Final answer
    x = 5,779.74

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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.