Home / 15,131.56-22,700.58-4,742.50

Finding the Fourth Proportional to 15,131.56, 22,700.58 and 4,742.50

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Solution

The fourth proportional to 15,131.56, 22,700.58 and 4,742.50 is: 7,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.56 : 22,700.58 = 4,742.50 : x
  2. Step 2: Convert to fraction form
    15,131.56/22,700.58 = 4,742.50/x
  3. Step 3: Cross multiply
    15,131.56x = 22,700.58 × 4,742.50
  4. Step 4: Simplify right side
    15,131.56x = 107,657,500.65
  5. Step 5: Solve for x
    x = 107,657,500.65/15,131.56
  6. Step 6: Final answer
    x = 7,114.77

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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.