Home / 15,403.10-23,104.64-5,415.68

Finding the Fourth Proportional to 15,403.10, 23,104.64 and 5,415.68

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Solution

The fourth proportional to 15,403.10, 23,104.64 and 5,415.68 is: 8,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.10 : 23,104.64 = 5,415.68 : x
  2. Step 2: Convert to fraction form
    15,403.10/23,104.64 = 5,415.68/x
  3. Step 3: Cross multiply
    15,403.10x = 23,104.64 × 5,415.68
  4. Step 4: Simplify right side
    15,403.10x = 125,127,408.06
  5. Step 5: Solve for x
    x = 125,127,408.06/15,403.10
  6. Step 6: Final answer
    x = 8,123.52

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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.