Home / 11,277.11-15,526.75-9,931.80

Finding the Fourth Proportional to 11,277.11, 15,526.75 and 9,931.80

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Solution

The fourth proportional to 11,277.11, 15,526.75 and 9,931.80 is: 13,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.11 : 15,526.75 = 9,931.80 : x
  2. Step 2: Convert to fraction form
    11,277.11/15,526.75 = 9,931.80/x
  3. Step 3: Cross multiply
    11,277.11x = 15,526.75 × 9,931.80
  4. Step 4: Simplify right side
    11,277.11x = 154,208,575.65
  5. Step 5: Solve for x
    x = 154,208,575.65/11,277.11
  6. Step 6: Final answer
    x = 13,674.48

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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.