Home / 10,368.90-15,548.85-4,820.40

Finding the Fourth Proportional to 10,368.90, 15,548.85 and 4,820.40

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Solution

The fourth proportional to 10,368.90, 15,548.85 and 4,820.40 is: 7,228.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.90 : 15,548.85 = 4,820.40 : x
  2. Step 2: Convert to fraction form
    10,368.90/15,548.85 = 4,820.40/x
  3. Step 3: Cross multiply
    10,368.90x = 15,548.85 × 4,820.40
  4. Step 4: Simplify right side
    10,368.90x = 74,951,676.54
  5. Step 5: Solve for x
    x = 74,951,676.54/10,368.90
  6. Step 6: Final answer
    x = 7,228.51

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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.