Home / 14,579.48-20,117.76-8,206.40

Finding the Fourth Proportional to 14,579.48, 20,117.76 and 8,206.40

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Solution

The fourth proportional to 14,579.48, 20,117.76 and 8,206.40 is: 11,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.48 : 20,117.76 = 8,206.40 : x
  2. Step 2: Convert to fraction form
    14,579.48/20,117.76 = 8,206.40/x
  3. Step 3: Cross multiply
    14,579.48x = 20,117.76 × 8,206.40
  4. Step 4: Simplify right side
    14,579.48x = 165,094,385.66
  5. Step 5: Solve for x
    x = 165,094,385.66/14,579.48
  6. Step 6: Final answer
    x = 11,323.75

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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.