Home / 10,455.75-14,428.76-5,740.00

Finding the Fourth Proportional to 10,455.75, 14,428.76 and 5,740.00

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Solution

The fourth proportional to 10,455.75, 14,428.76 and 5,740.00 is: 7,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.75 : 14,428.76 = 5,740.00 : x
  2. Step 2: Convert to fraction form
    10,455.75/14,428.76 = 5,740.00/x
  3. Step 3: Cross multiply
    10,455.75x = 14,428.76 × 5,740.00
  4. Step 4: Simplify right side
    10,455.75x = 82,821,093.26
  5. Step 5: Solve for x
    x = 82,821,093.26/10,455.75
  6. Step 6: Final answer
    x = 7,921.10

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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.