Home / 13,246.07-18,278.67-7,277.99

Finding the Fourth Proportional to 13,246.07, 18,278.67 and 7,277.99

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Solution

The fourth proportional to 13,246.07, 18,278.67 and 7,277.99 is: 10,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.07 : 18,278.67 = 7,277.99 : x
  2. Step 2: Convert to fraction form
    13,246.07/18,278.67 = 7,277.99/x
  3. Step 3: Cross multiply
    13,246.07x = 18,278.67 × 7,277.99
  4. Step 4: Simplify right side
    13,246.07x = 133,031,977.47
  5. Step 5: Solve for x
    x = 133,031,977.47/13,246.07
  6. Step 6: Final answer
    x = 10,043.13

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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.