Home / 10,995.81-15,176.25-6,280.09

Finding the Fourth Proportional to 10,995.81, 15,176.25 and 6,280.09

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Solution

The fourth proportional to 10,995.81, 15,176.25 and 6,280.09 is: 8,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.81 : 15,176.25 = 6,280.09 : x
  2. Step 2: Convert to fraction form
    10,995.81/15,176.25 = 6,280.09/x
  3. Step 3: Cross multiply
    10,995.81x = 15,176.25 × 6,280.09
  4. Step 4: Simplify right side
    10,995.81x = 95,308,211.77
  5. Step 5: Solve for x
    x = 95,308,211.77/10,995.81
  6. Step 6: Final answer
    x = 8,667.69

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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.