Home / 11,068.56-15,284.40-7,540.32

Finding the Fourth Proportional to 11,068.56, 15,284.40 and 7,540.32

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Solution

The fourth proportional to 11,068.56, 15,284.40 and 7,540.32 is: 10,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.56 : 15,284.40 = 7,540.32 : x
  2. Step 2: Convert to fraction form
    11,068.56/15,284.40 = 7,540.32/x
  3. Step 3: Cross multiply
    11,068.56x = 15,284.40 × 7,540.32
  4. Step 4: Simplify right side
    11,068.56x = 115,249,267.01
  5. Step 5: Solve for x
    x = 115,249,267.01/11,068.56
  6. Step 6: Final answer
    x = 10,412.31

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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.