Home / 14,970.10-20,658.90-8,255.74

Finding the Fourth Proportional to 14,970.10, 20,658.90 and 8,255.74

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Solution

The fourth proportional to 14,970.10, 20,658.90 and 8,255.74 is: 11,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.10 : 20,658.90 = 8,255.74 : x
  2. Step 2: Convert to fraction form
    14,970.10/20,658.90 = 8,255.74/x
  3. Step 3: Cross multiply
    14,970.10x = 20,658.90 × 8,255.74
  4. Step 4: Simplify right side
    14,970.10x = 170,554,507.09
  5. Step 5: Solve for x
    x = 170,554,507.09/14,970.10
  6. Step 6: Final answer
    x = 11,393.01

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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.