Home / 15,411.51-23,118.29-5,415.04

Finding the Fourth Proportional to 15,411.51, 23,118.29 and 5,415.04

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Solution

The fourth proportional to 15,411.51, 23,118.29 and 5,415.04 is: 8,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.51 : 23,118.29 = 5,415.04 : x
  2. Step 2: Convert to fraction form
    15,411.51/23,118.29 = 5,415.04/x
  3. Step 3: Cross multiply
    15,411.51x = 23,118.29 × 5,415.04
  4. Step 4: Simplify right side
    15,411.51x = 125,186,487.21
  5. Step 5: Solve for x
    x = 125,186,487.21/15,411.51
  6. Step 6: Final answer
    x = 8,122.92

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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.