Home / 10,103.80-15,157.72-4,260.40

Finding the Fourth Proportional to 10,103.80, 15,157.72 and 4,260.40

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Solution

The fourth proportional to 10,103.80, 15,157.72 and 4,260.40 is: 6,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.80 : 15,157.72 = 4,260.40 : x
  2. Step 2: Convert to fraction form
    10,103.80/15,157.72 = 4,260.40/x
  3. Step 3: Cross multiply
    10,103.80x = 15,157.72 × 4,260.40
  4. Step 4: Simplify right side
    10,103.80x = 64,577,950.29
  5. Step 5: Solve for x
    x = 64,577,950.29/10,103.80
  6. Step 6: Final answer
    x = 6,391.45

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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.