Home / 10,299.55-15,448.25-6,989.05

Finding the Fourth Proportional to 10,299.55, 15,448.25 and 6,989.05

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Solution

The fourth proportional to 10,299.55, 15,448.25 and 6,989.05 is: 10,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.55 : 15,448.25 = 6,989.05 : x
  2. Step 2: Convert to fraction form
    10,299.55/15,448.25 = 6,989.05/x
  3. Step 3: Cross multiply
    10,299.55x = 15,448.25 × 6,989.05
  4. Step 4: Simplify right side
    10,299.55x = 107,968,570.51
  5. Step 5: Solve for x
    x = 107,968,570.51/10,299.55
  6. Step 6: Final answer
    x = 10,482.85

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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.