Home / 7,815.68-10,787.84-4,503.04

Finding the Fourth Proportional to 7,815.68, 10,787.84 and 4,503.04

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Solution

The fourth proportional to 7,815.68, 10,787.84 and 4,503.04 is: 6,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.68 : 10,787.84 = 4,503.04 : x
  2. Step 2: Convert to fraction form
    7,815.68/10,787.84 = 4,503.04/x
  3. Step 3: Cross multiply
    7,815.68x = 10,787.84 × 4,503.04
  4. Step 4: Simplify right side
    7,815.68x = 48,578,075.03
  5. Step 5: Solve for x
    x = 48,578,075.03/7,815.68
  6. Step 6: Final answer
    x = 6,215.46

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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.