Home / 9,109.31-13,666.05-4,725.79

Finding the Fourth Proportional to 9,109.31, 13,666.05 and 4,725.79

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Solution

The fourth proportional to 9,109.31, 13,666.05 and 4,725.79 is: 7,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.31 : 13,666.05 = 4,725.79 : x
  2. Step 2: Convert to fraction form
    9,109.31/13,666.05 = 4,725.79/x
  3. Step 3: Cross multiply
    9,109.31x = 13,666.05 × 4,725.79
  4. Step 4: Simplify right side
    9,109.31x = 64,582,848.26
  5. Step 5: Solve for x
    x = 64,582,848.26/9,109.31
  6. Step 6: Final answer
    x = 7,089.77

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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.