Home / 10,674.81-15,987.60-7,390.22

Finding the Fourth Proportional to 10,674.81, 15,987.60 and 7,390.22

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Solution

The fourth proportional to 10,674.81, 15,987.60 and 7,390.22 is: 11,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,674.81 : 15,987.60 = 7,390.22 : x
  2. Step 2: Convert to fraction form
    10,674.81/15,987.60 = 7,390.22/x
  3. Step 3: Cross multiply
    10,674.81x = 15,987.60 × 7,390.22
  4. Step 4: Simplify right side
    10,674.81x = 118,151,801.33
  5. Step 5: Solve for x
    x = 118,151,801.33/10,674.81
  6. Step 6: Final answer
    x = 11,068.28

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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.