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Finding the Fourth Proportional to 7,483.74, 10,328.16 and 4,127.20

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Solution

The fourth proportional to 7,483.74, 10,328.16 and 4,127.20 is: 5,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,483.74 : 10,328.16 = 4,127.20 : x
  2. Step 2: Convert to fraction form
    7,483.74/10,328.16 = 4,127.20/x
  3. Step 3: Cross multiply
    7,483.74x = 10,328.16 × 4,127.20
  4. Step 4: Simplify right side
    7,483.74x = 42,626,381.95
  5. Step 5: Solve for x
    x = 42,626,381.95/7,483.74
  6. Step 6: Final answer
    x = 5,695.87

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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.