Home / 9,905.04-13,668.48-5,427.96

Finding the Fourth Proportional to 9,905.04, 13,668.48 and 5,427.96

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Solution

The fourth proportional to 9,905.04, 13,668.48 and 5,427.96 is: 7,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.04 : 13,668.48 = 5,427.96 : x
  2. Step 2: Convert to fraction form
    9,905.04/13,668.48 = 5,427.96/x
  3. Step 3: Cross multiply
    9,905.04x = 13,668.48 × 5,427.96
  4. Step 4: Simplify right side
    9,905.04x = 74,191,962.70
  5. Step 5: Solve for x
    x = 74,191,962.70/9,905.04
  6. Step 6: Final answer
    x = 7,490.32

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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.