Home / 15,482.40-21,366.08-8,768.04

Finding the Fourth Proportional to 15,482.40, 21,366.08 and 8,768.04

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Solution

The fourth proportional to 15,482.40, 21,366.08 and 8,768.04 is: 12,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.40 : 21,366.08 = 8,768.04 : x
  2. Step 2: Convert to fraction form
    15,482.40/21,366.08 = 8,768.04/x
  3. Step 3: Cross multiply
    15,482.40x = 21,366.08 × 8,768.04
  4. Step 4: Simplify right side
    15,482.40x = 187,338,644.08
  5. Step 5: Solve for x
    x = 187,338,644.08/15,482.40
  6. Step 6: Final answer
    x = 12,100.10

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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.