Home / 14,587.28-20,130.08-8,299.28

Finding the Fourth Proportional to 14,587.28, 20,130.08 and 8,299.28

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Solution

The fourth proportional to 14,587.28, 20,130.08 and 8,299.28 is: 11,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.28 : 20,130.08 = 8,299.28 : x
  2. Step 2: Convert to fraction form
    14,587.28/20,130.08 = 8,299.28/x
  3. Step 3: Cross multiply
    14,587.28x = 20,130.08 × 8,299.28
  4. Step 4: Simplify right side
    14,587.28x = 167,065,170.34
  5. Step 5: Solve for x
    x = 167,065,170.34/14,587.28
  6. Step 6: Final answer
    x = 11,452.80

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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.