Home / 9,457.40-13,040.37-7,750.53

Finding the Fourth Proportional to 9,457.40, 13,040.37 and 7,750.53

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Solution

The fourth proportional to 9,457.40, 13,040.37 and 7,750.53 is: 10,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,457.40 : 13,040.37 = 7,750.53 : x
  2. Step 2: Convert to fraction form
    9,457.40/13,040.37 = 7,750.53/x
  3. Step 3: Cross multiply
    9,457.40x = 13,040.37 × 7,750.53
  4. Step 4: Simplify right side
    9,457.40x = 101,069,778.90
  5. Step 5: Solve for x
    x = 101,069,778.90/9,457.40
  6. Step 6: Final answer
    x = 10,686.85

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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.