Home / 14,987.07-20,683.08-8,615.70

Finding the Fourth Proportional to 14,987.07, 20,683.08 and 8,615.70

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Solution

The fourth proportional to 14,987.07, 20,683.08 and 8,615.70 is: 11,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.07 : 20,683.08 = 8,615.70 : x
  2. Step 2: Convert to fraction form
    14,987.07/20,683.08 = 8,615.70/x
  3. Step 3: Cross multiply
    14,987.07x = 20,683.08 × 8,615.70
  4. Step 4: Simplify right side
    14,987.07x = 178,199,212.36
  5. Step 5: Solve for x
    x = 178,199,212.36/14,987.07
  6. Step 6: Final answer
    x = 11,890.20

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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.