Home / 9,999.40-15,023.70-7,526.72

Finding the Fourth Proportional to 9,999.40, 15,023.70 and 7,526.72

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Solution

The fourth proportional to 9,999.40, 15,023.70 and 7,526.72 is: 11,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.40 : 15,023.70 = 7,526.72 : x
  2. Step 2: Convert to fraction form
    9,999.40/15,023.70 = 7,526.72/x
  3. Step 3: Cross multiply
    9,999.40x = 15,023.70 × 7,526.72
  4. Step 4: Simplify right side
    9,999.40x = 113,079,241.99
  5. Step 5: Solve for x
    x = 113,079,241.99/9,999.40
  6. Step 6: Final answer
    x = 11,308.60

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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.