Home / 10,123.04-15,184.55-5,189.53

Finding the Fourth Proportional to 10,123.04, 15,184.55 and 5,189.53

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Solution

The fourth proportional to 10,123.04, 15,184.55 and 5,189.53 is: 7,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.04 : 15,184.55 = 5,189.53 : x
  2. Step 2: Convert to fraction form
    10,123.04/15,184.55 = 5,189.53/x
  3. Step 3: Cross multiply
    10,123.04x = 15,184.55 × 5,189.53
  4. Step 4: Simplify right side
    10,123.04x = 78,800,575.89
  5. Step 5: Solve for x
    x = 78,800,575.89/10,123.04
  6. Step 6: Final answer
    x = 7,784.28

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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.