Home / 11,200.08-15,448.18-9,705.36

Finding the Fourth Proportional to 11,200.08, 15,448.18 and 9,705.36

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Solution

The fourth proportional to 11,200.08, 15,448.18 and 9,705.36 is: 13,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.08 : 15,448.18 = 9,705.36 : x
  2. Step 2: Convert to fraction form
    11,200.08/15,448.18 = 9,705.36/x
  3. Step 3: Cross multiply
    11,200.08x = 15,448.18 × 9,705.36
  4. Step 4: Simplify right side
    11,200.08x = 149,930,148.24
  5. Step 5: Solve for x
    x = 149,930,148.24/11,200.08
  6. Step 6: Final answer
    x = 13,386.52

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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.