Home / 13,699.12-20,528.04-10,574.38

Finding the Fourth Proportional to 13,699.12, 20,528.04 and 10,574.38

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Solution

The fourth proportional to 13,699.12, 20,528.04 and 10,574.38 is: 15,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.12 : 20,528.04 = 10,574.38 : x
  2. Step 2: Convert to fraction form
    13,699.12/20,528.04 = 10,574.38/x
  3. Step 3: Cross multiply
    13,699.12x = 20,528.04 × 10,574.38
  4. Step 4: Simplify right side
    13,699.12x = 217,071,295.62
  5. Step 5: Solve for x
    x = 217,071,295.62/13,699.12
  6. Step 6: Final answer
    x = 15,845.64

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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.