Home / 10,455.26-14,428.28-5,675.20

Finding the Fourth Proportional to 10,455.26, 14,428.28 and 5,675.20

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Solution

The fourth proportional to 10,455.26, 14,428.28 and 5,675.20 is: 7,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.26 : 14,428.28 = 5,675.20 : x
  2. Step 2: Convert to fraction form
    10,455.26/14,428.28 = 5,675.20/x
  3. Step 3: Cross multiply
    10,455.26x = 14,428.28 × 5,675.20
  4. Step 4: Simplify right side
    10,455.26x = 81,883,421.67
  5. Step 5: Solve for x
    x = 81,883,421.67/10,455.26
  6. Step 6: Final answer
    x = 7,831.79

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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.