Home / 13,343.30-19,973.43-8,402.56

Finding the Fourth Proportional to 13,343.30, 19,973.43 and 8,402.56

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Solution

The fourth proportional to 13,343.30, 19,973.43 and 8,402.56 is: 12,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.30 : 19,973.43 = 8,402.56 : x
  2. Step 2: Convert to fraction form
    13,343.30/19,973.43 = 8,402.56/x
  3. Step 3: Cross multiply
    13,343.30x = 19,973.43 × 8,402.56
  4. Step 4: Simplify right side
    13,343.30x = 167,827,894.05
  5. Step 5: Solve for x
    x = 167,827,894.05/13,343.30
  6. Step 6: Final answer
    x = 12,577.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.