Home / 7,533.84-10,405.21-5,139.70

Finding the Fourth Proportional to 7,533.84, 10,405.21 and 5,139.70

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Solution

The fourth proportional to 7,533.84, 10,405.21 and 5,139.70 is: 7,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,533.84 : 10,405.21 = 5,139.70 : x
  2. Step 2: Convert to fraction form
    7,533.84/10,405.21 = 5,139.70/x
  3. Step 3: Cross multiply
    7,533.84x = 10,405.21 × 5,139.70
  4. Step 4: Simplify right side
    7,533.84x = 53,479,677.27
  5. Step 5: Solve for x
    x = 53,479,677.27/7,533.84
  6. Step 6: Final answer
    x = 7,098.59

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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.