Home / 14,798.20-20,421.50-8,510.57

Finding the Fourth Proportional to 14,798.20, 20,421.50 and 8,510.57

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Solution

The fourth proportional to 14,798.20, 20,421.50 and 8,510.57 is: 11,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.20 : 20,421.50 = 8,510.57 : x
  2. Step 2: Convert to fraction form
    14,798.20/20,421.50 = 8,510.57/x
  3. Step 3: Cross multiply
    14,798.20x = 20,421.50 × 8,510.57
  4. Step 4: Simplify right side
    14,798.20x = 173,798,562.70
  5. Step 5: Solve for x
    x = 173,798,562.70/14,798.20
  6. Step 6: Final answer
    x = 11,744.58

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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.