Home / 15,427.53-21,290.04-8,354.07

Finding the Fourth Proportional to 15,427.53, 21,290.04 and 8,354.07

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Solution

The fourth proportional to 15,427.53, 21,290.04 and 8,354.07 is: 11,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.53 : 21,290.04 = 8,354.07 : x
  2. Step 2: Convert to fraction form
    15,427.53/21,290.04 = 8,354.07/x
  3. Step 3: Cross multiply
    15,427.53x = 21,290.04 × 8,354.07
  4. Step 4: Simplify right side
    15,427.53x = 177,858,484.46
  5. Step 5: Solve for x
    x = 177,858,484.46/15,427.53
  6. Step 6: Final answer
    x = 11,528.64

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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.