Home / 11,688.65-17,510.28-10,379.69

Finding the Fourth Proportional to 11,688.65, 17,510.28 and 10,379.69

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Solution

The fourth proportional to 11,688.65, 17,510.28 and 10,379.69 is: 15,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.65 : 17,510.28 = 10,379.69 : x
  2. Step 2: Convert to fraction form
    11,688.65/17,510.28 = 10,379.69/x
  3. Step 3: Cross multiply
    11,688.65x = 17,510.28 × 10,379.69
  4. Step 4: Simplify right side
    11,688.65x = 181,751,278.21
  5. Step 5: Solve for x
    x = 181,751,278.21/11,688.65
  6. Step 6: Final answer
    x = 15,549.38

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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.