Home / 10,555.72-15,838.76-6,605.98

Finding the Fourth Proportional to 10,555.72, 15,838.76 and 6,605.98

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Solution

The fourth proportional to 10,555.72, 15,838.76 and 6,605.98 is: 9,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.72 : 15,838.76 = 6,605.98 : x
  2. Step 2: Convert to fraction form
    10,555.72/15,838.76 = 6,605.98/x
  3. Step 3: Cross multiply
    10,555.72x = 15,838.76 × 6,605.98
  4. Step 4: Simplify right side
    10,555.72x = 104,630,531.78
  5. Step 5: Solve for x
    x = 104,630,531.78/10,555.72
  6. Step 6: Final answer
    x = 9,912.21

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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.