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Finding the Fourth Proportional to 9,477.55, 14,219.99 and 3,929.47

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Solution

The fourth proportional to 9,477.55, 14,219.99 and 3,929.47 is: 5,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.55 : 14,219.99 = 3,929.47 : x
  2. Step 2: Convert to fraction form
    9,477.55/14,219.99 = 3,929.47/x
  3. Step 3: Cross multiply
    9,477.55x = 14,219.99 × 3,929.47
  4. Step 4: Simplify right side
    9,477.55x = 55,877,024.11
  5. Step 5: Solve for x
    x = 55,877,024.11/9,477.55
  6. Step 6: Final answer
    x = 5,895.72

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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.