Home / 15,385.74-23,078.51-4,292.48

Finding the Fourth Proportional to 15,385.74, 23,078.51 and 4,292.48

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Solution

The fourth proportional to 15,385.74, 23,078.51 and 4,292.48 is: 6,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.74 : 23,078.51 = 4,292.48 : x
  2. Step 2: Convert to fraction form
    15,385.74/23,078.51 = 4,292.48/x
  3. Step 3: Cross multiply
    15,385.74x = 23,078.51 × 4,292.48
  4. Step 4: Simplify right side
    15,385.74x = 99,064,078.84
  5. Step 5: Solve for x
    x = 99,064,078.84/15,385.74
  6. Step 6: Final answer
    x = 6,438.69

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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.