Home / 10,455.30-14,428.35-5,739.66

Finding the Fourth Proportional to 10,455.30, 14,428.35 and 5,739.66

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Solution

The fourth proportional to 10,455.30, 14,428.35 and 5,739.66 is: 7,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.30 : 14,428.35 = 5,739.66 : x
  2. Step 2: Convert to fraction form
    10,455.30/14,428.35 = 5,739.66/x
  3. Step 3: Cross multiply
    10,455.30x = 14,428.35 × 5,739.66
  4. Step 4: Simplify right side
    10,455.30x = 82,813,823.36
  5. Step 5: Solve for x
    x = 82,813,823.36/10,455.30
  6. Step 6: Final answer
    x = 7,920.75

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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.