Home / 10,839.09-16,280.49-6,465.09

Finding the Fourth Proportional to 10,839.09, 16,280.49 and 6,465.09

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Solution

The fourth proportional to 10,839.09, 16,280.49 and 6,465.09 is: 9,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.09 : 16,280.49 = 6,465.09 : x
  2. Step 2: Convert to fraction form
    10,839.09/16,280.49 = 6,465.09/x
  3. Step 3: Cross multiply
    10,839.09x = 16,280.49 × 6,465.09
  4. Step 4: Simplify right side
    10,839.09x = 105,254,833.09
  5. Step 5: Solve for x
    x = 105,254,833.09/10,839.09
  6. Step 6: Final answer
    x = 9,710.67

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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.