Home / 14,783.50-20,404.70-9,748.63

Finding the Fourth Proportional to 14,783.50, 20,404.70 and 9,748.63

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Solution

The fourth proportional to 14,783.50, 20,404.70 and 9,748.63 is: 13,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,783.50 : 20,404.70 = 9,748.63 : x
  2. Step 2: Convert to fraction form
    14,783.50/20,404.70 = 9,748.63/x
  3. Step 3: Cross multiply
    14,783.50x = 20,404.70 × 9,748.63
  4. Step 4: Simplify right side
    14,783.50x = 198,917,870.56
  5. Step 5: Solve for x
    x = 198,917,870.56/14,783.50
  6. Step 6: Final answer
    x = 13,455.40

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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.