Home / 11,171.07-15,421.59-7,652.70

Finding the Fourth Proportional to 11,171.07, 15,421.59 and 7,652.70

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Solution

The fourth proportional to 11,171.07, 15,421.59 and 7,652.70 is: 10,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.07 : 15,421.59 = 7,652.70 : x
  2. Step 2: Convert to fraction form
    11,171.07/15,421.59 = 7,652.70/x
  3. Step 3: Cross multiply
    11,171.07x = 15,421.59 × 7,652.70
  4. Step 4: Simplify right side
    11,171.07x = 118,016,801.79
  5. Step 5: Solve for x
    x = 118,016,801.79/11,171.07
  6. Step 6: Final answer
    x = 10,564.50

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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.