Home / 13,140.24-19,699.71-8,969.74

Finding the Fourth Proportional to 13,140.24, 19,699.71 and 8,969.74

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Solution

The fourth proportional to 13,140.24, 19,699.71 and 8,969.74 is: 13,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.24 : 19,699.71 = 8,969.74 : x
  2. Step 2: Convert to fraction form
    13,140.24/19,699.71 = 8,969.74/x
  3. Step 3: Cross multiply
    13,140.24x = 19,699.71 × 8,969.74
  4. Step 4: Simplify right side
    13,140.24x = 176,701,276.78
  5. Step 5: Solve for x
    x = 176,701,276.78/13,140.24
  6. Step 6: Final answer
    x = 13,447.34

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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.