Home / 13,165.10-19,740.45-5,365.10

Finding the Fourth Proportional to 13,165.10, 19,740.45 and 5,365.10

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Solution

The fourth proportional to 13,165.10, 19,740.45 and 5,365.10 is: 8,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.10 : 19,740.45 = 5,365.10 : x
  2. Step 2: Convert to fraction form
    13,165.10/19,740.45 = 5,365.10/x
  3. Step 3: Cross multiply
    13,165.10x = 19,740.45 × 5,365.10
  4. Step 4: Simplify right side
    13,165.10x = 105,909,488.30
  5. Step 5: Solve for x
    x = 105,909,488.30/13,165.10
  6. Step 6: Final answer
    x = 8,044.72

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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.