Home / 10,455.18-14,430.78-7,052.73

Finding the Fourth Proportional to 10,455.18, 14,430.78 and 7,052.73

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Solution

The fourth proportional to 10,455.18, 14,430.78 and 7,052.73 is: 9,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.18 : 14,430.78 = 7,052.73 : x
  2. Step 2: Convert to fraction form
    10,455.18/14,430.78 = 7,052.73/x
  3. Step 3: Cross multiply
    10,455.18x = 14,430.78 × 7,052.73
  4. Step 4: Simplify right side
    10,455.18x = 101,776,395.03
  5. Step 5: Solve for x
    x = 101,776,395.03/10,455.18
  6. Step 6: Final answer
    x = 9,734.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.