Home / 10,867.48-16,290.42-6,478.36

Finding the Fourth Proportional to 10,867.48, 16,290.42 and 6,478.36

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Solution

The fourth proportional to 10,867.48, 16,290.42 and 6,478.36 is: 9,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.48 : 16,290.42 = 6,478.36 : x
  2. Step 2: Convert to fraction form
    10,867.48/16,290.42 = 6,478.36/x
  3. Step 3: Cross multiply
    10,867.48x = 16,290.42 × 6,478.36
  4. Step 4: Simplify right side
    10,867.48x = 105,535,205.31
  5. Step 5: Solve for x
    x = 105,535,205.31/10,867.48
  6. Step 6: Final answer
    x = 9,711.10

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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.