Home / 14,744.45-20,345.80-8,774.95

Finding the Fourth Proportional to 14,744.45, 20,345.80 and 8,774.95

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Solution

The fourth proportional to 14,744.45, 20,345.80 and 8,774.95 is: 12,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,744.45 : 20,345.80 = 8,774.95 : x
  2. Step 2: Convert to fraction form
    14,744.45/20,345.80 = 8,774.95/x
  3. Step 3: Cross multiply
    14,744.45x = 20,345.80 × 8,774.95
  4. Step 4: Simplify right side
    14,744.45x = 178,533,359.51
  5. Step 5: Solve for x
    x = 178,533,359.51/14,744.45
  6. Step 6: Final answer
    x = 12,108.52

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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.