Home / 7,124.95-10,688.84-3,612.18

Finding the Fourth Proportional to 7,124.95, 10,688.84 and 3,612.18

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Solution

The fourth proportional to 7,124.95, 10,688.84 and 3,612.18 is: 5,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.95 : 10,688.84 = 3,612.18 : x
  2. Step 2: Convert to fraction form
    7,124.95/10,688.84 = 3,612.18/x
  3. Step 3: Cross multiply
    7,124.95x = 10,688.84 × 3,612.18
  4. Step 4: Simplify right side
    7,124.95x = 38,610,014.07
  5. Step 5: Solve for x
    x = 38,610,014.07/7,124.95
  6. Step 6: Final answer
    x = 5,418.99

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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.