Home / 15,406.64-23,109.42-5,543.72

Finding the Fourth Proportional to 15,406.64, 23,109.42 and 5,543.72

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Solution

The fourth proportional to 15,406.64, 23,109.42 and 5,543.72 is: 8,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.64 : 23,109.42 = 5,543.72 : x
  2. Step 2: Convert to fraction form
    15,406.64/23,109.42 = 5,543.72/x
  3. Step 3: Cross multiply
    15,406.64x = 23,109.42 × 5,543.72
  4. Step 4: Simplify right side
    15,406.64x = 128,112,153.84
  5. Step 5: Solve for x
    x = 128,112,153.84/15,406.64
  6. Step 6: Final answer
    x = 8,315.39

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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.