Home / 10,069.61-15,109.74-7,318.98

Finding the Fourth Proportional to 10,069.61, 15,109.74 and 7,318.98

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Solution

The fourth proportional to 10,069.61, 15,109.74 and 7,318.98 is: 10,982.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069.61 : 15,109.74 = 7,318.98 : x
  2. Step 2: Convert to fraction form
    10,069.61/15,109.74 = 7,318.98/x
  3. Step 3: Cross multiply
    10,069.61x = 15,109.74 × 7,318.98
  4. Step 4: Simplify right side
    10,069.61x = 110,587,884.87
  5. Step 5: Solve for x
    x = 110,587,884.87/10,069.61
  6. Step 6: Final answer
    x = 10,982.35

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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.