Home / 10,455.84-14,429.52-5,740.20

Finding the Fourth Proportional to 10,455.84, 14,429.52 and 5,740.20

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Solution

The fourth proportional to 10,455.84, 14,429.52 and 5,740.20 is: 7,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.84 : 14,429.52 = 5,740.20 : x
  2. Step 2: Convert to fraction form
    10,455.84/14,429.52 = 5,740.20/x
  3. Step 3: Cross multiply
    10,455.84x = 14,429.52 × 5,740.20
  4. Step 4: Simplify right side
    10,455.84x = 82,828,330.70
  5. Step 5: Solve for x
    x = 82,828,330.70/10,455.84
  6. Step 6: Final answer
    x = 7,921.73

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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.