Home / 10,455.96-14,428.38-5,740.08

Finding the Fourth Proportional to 10,455.96, 14,428.38 and 5,740.08

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Solution

The fourth proportional to 10,455.96, 14,428.38 and 5,740.08 is: 7,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.96 : 14,428.38 = 5,740.08 : x
  2. Step 2: Convert to fraction form
    10,455.96/14,428.38 = 5,740.08/x
  3. Step 3: Cross multiply
    10,455.96x = 14,428.38 × 5,740.08
  4. Step 4: Simplify right side
    10,455.96x = 82,820,055.47
  5. Step 5: Solve for x
    x = 82,820,055.47/10,455.96
  6. Step 6: Final answer
    x = 7,920.85

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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.