Home / 10,315.87-15,459.93-5,628.85

Finding the Fourth Proportional to 10,315.87, 15,459.93 and 5,628.85

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Solution

The fourth proportional to 10,315.87, 15,459.93 and 5,628.85 is: 8,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.87 : 15,459.93 = 5,628.85 : x
  2. Step 2: Convert to fraction form
    10,315.87/15,459.93 = 5,628.85/x
  3. Step 3: Cross multiply
    10,315.87x = 15,459.93 × 5,628.85
  4. Step 4: Simplify right side
    10,315.87x = 87,021,626.98
  5. Step 5: Solve for x
    x = 87,021,626.98/10,315.87
  6. Step 6: Final answer
    x = 8,435.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.