Home / 10,520.45-15,801.70-6,578.72

Finding the Fourth Proportional to 10,520.45, 15,801.70 and 6,578.72

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Solution

The fourth proportional to 10,520.45, 15,801.70 and 6,578.72 is: 9,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.45 : 15,801.70 = 6,578.72 : x
  2. Step 2: Convert to fraction form
    10,520.45/15,801.70 = 6,578.72/x
  3. Step 3: Cross multiply
    10,520.45x = 15,801.70 × 6,578.72
  4. Step 4: Simplify right side
    10,520.45x = 103,954,959.82
  5. Step 5: Solve for x
    x = 103,954,959.82/10,520.45
  6. Step 6: Final answer
    x = 9,881.23

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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.