Home / 12,328.20-17,013.24-7,547.58

Finding the Fourth Proportional to 12,328.20, 17,013.24 and 7,547.58

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Solution

The fourth proportional to 12,328.20, 17,013.24 and 7,547.58 is: 10,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.20 : 17,013.24 = 7,547.58 : x
  2. Step 2: Convert to fraction form
    12,328.20/17,013.24 = 7,547.58/x
  3. Step 3: Cross multiply
    12,328.20x = 17,013.24 × 7,547.58
  4. Step 4: Simplify right side
    12,328.20x = 128,408,789.96
  5. Step 5: Solve for x
    x = 128,408,789.96/12,328.20
  6. Step 6: Final answer
    x = 10,415.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.