Home / 14,750.28-20,353.68-8,782.20

Finding the Fourth Proportional to 14,750.28, 20,353.68 and 8,782.20

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Solution

The fourth proportional to 14,750.28, 20,353.68 and 8,782.20 is: 12,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.28 : 20,353.68 = 8,782.20 : x
  2. Step 2: Convert to fraction form
    14,750.28/20,353.68 = 8,782.20/x
  3. Step 3: Cross multiply
    14,750.28x = 20,353.68 × 8,782.20
  4. Step 4: Simplify right side
    14,750.28x = 178,750,088.50
  5. Step 5: Solve for x
    x = 178,750,088.50/14,750.28
  6. Step 6: Final answer
    x = 12,118.42

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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.