Home / 15,478.04-23,220.99-7,164.05

Finding the Fourth Proportional to 15,478.04, 23,220.99 and 7,164.05

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Solution

The fourth proportional to 15,478.04, 23,220.99 and 7,164.05 is: 10,747.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.04 : 23,220.99 = 7,164.05 : x
  2. Step 2: Convert to fraction form
    15,478.04/23,220.99 = 7,164.05/x
  3. Step 3: Cross multiply
    15,478.04x = 23,220.99 × 7,164.05
  4. Step 4: Simplify right side
    15,478.04x = 166,356,217.30
  5. Step 5: Solve for x
    x = 166,356,217.30/15,478.04
  6. Step 6: Final answer
    x = 10,747.88

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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.