Home / 11,386.65-17,079.90-5,300.19

Finding the Fourth Proportional to 11,386.65, 17,079.90 and 5,300.19

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Solution

The fourth proportional to 11,386.65, 17,079.90 and 5,300.19 is: 7,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.65 : 17,079.90 = 5,300.19 : x
  2. Step 2: Convert to fraction form
    11,386.65/17,079.90 = 5,300.19/x
  3. Step 3: Cross multiply
    11,386.65x = 17,079.90 × 5,300.19
  4. Step 4: Simplify right side
    11,386.65x = 90,526,715.18
  5. Step 5: Solve for x
    x = 90,526,715.18/11,386.65
  6. Step 6: Final answer
    x = 7,950.25

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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.