Home / 14,885.91-20,541.80-8,171.35

Finding the Fourth Proportional to 14,885.91, 20,541.80 and 8,171.35

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Solution

The fourth proportional to 14,885.91, 20,541.80 and 8,171.35 is: 11,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.91 : 20,541.80 = 8,171.35 : x
  2. Step 2: Convert to fraction form
    14,885.91/20,541.80 = 8,171.35/x
  3. Step 3: Cross multiply
    14,885.91x = 20,541.80 × 8,171.35
  4. Step 4: Simplify right side
    14,885.91x = 167,854,206.50
  5. Step 5: Solve for x
    x = 167,854,206.50/14,885.91
  6. Step 6: Final answer
    x = 11,276.05

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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.