Home / 14,184.95-21,278.40-4,821.15

Finding the Fourth Proportional to 14,184.95, 21,278.40 and 4,821.15

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Solution

The fourth proportional to 14,184.95, 21,278.40 and 4,821.15 is: 7,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,184.95 : 21,278.40 = 4,821.15 : x
  2. Step 2: Convert to fraction form
    14,184.95/21,278.40 = 4,821.15/x
  3. Step 3: Cross multiply
    14,184.95x = 21,278.40 × 4,821.15
  4. Step 4: Simplify right side
    14,184.95x = 102,586,358.16
  5. Step 5: Solve for x
    x = 102,586,358.16/14,184.95
  6. Step 6: Final answer
    x = 7,232.06

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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.