Home / 11,988.48-16,543.56-6,683.88

Finding the Fourth Proportional to 11,988.48, 16,543.56 and 6,683.88

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Solution

The fourth proportional to 11,988.48, 16,543.56 and 6,683.88 is: 9,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.48 : 16,543.56 = 6,683.88 : x
  2. Step 2: Convert to fraction form
    11,988.48/16,543.56 = 6,683.88/x
  3. Step 3: Cross multiply
    11,988.48x = 16,543.56 × 6,683.88
  4. Step 4: Simplify right side
    11,988.48x = 110,575,169.81
  5. Step 5: Solve for x
    x = 110,575,169.81/11,988.48
  6. Step 6: Final answer
    x = 9,223.45

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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.