Home / 15,411.51-23,113.80-4,315.19

Finding the Fourth Proportional to 15,411.51, 23,113.80 and 4,315.19

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Solution

The fourth proportional to 15,411.51, 23,113.80 and 4,315.19 is: 6,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.51 : 23,113.80 = 4,315.19 : x
  2. Step 2: Convert to fraction form
    15,411.51/23,113.80 = 4,315.19/x
  3. Step 3: Cross multiply
    15,411.51x = 23,113.80 × 4,315.19
  4. Step 4: Simplify right side
    15,411.51x = 99,740,323.05
  5. Step 5: Solve for x
    x = 99,740,323.05/15,411.51
  6. Step 6: Final answer
    x = 6,471.81

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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.