Home / 15,379.19-21,084.86-15,098.93

Finding the Fourth Proportional to 15,379.19, 21,084.86 and 15,098.93

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Solution

The fourth proportional to 15,379.19, 21,084.86 and 15,098.93 is: 20,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.19 : 21,084.86 = 15,098.93 : x
  2. Step 2: Convert to fraction form
    15,379.19/21,084.86 = 15,098.93/x
  3. Step 3: Cross multiply
    15,379.19x = 21,084.86 × 15,098.93
  4. Step 4: Simplify right side
    15,379.19x = 318,358,955.19
  5. Step 5: Solve for x
    x = 318,358,955.19/15,379.19
  6. Step 6: Final answer
    x = 20,700.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.