Home / 15,150.60-22,715.64-7,740.72

Finding the Fourth Proportional to 15,150.60, 22,715.64 and 7,740.72

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Solution

The fourth proportional to 15,150.60, 22,715.64 and 7,740.72 is: 11,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.60 : 22,715.64 = 7,740.72 : x
  2. Step 2: Convert to fraction form
    15,150.60/22,715.64 = 7,740.72/x
  3. Step 3: Cross multiply
    15,150.60x = 22,715.64 × 7,740.72
  4. Step 4: Simplify right side
    15,150.60x = 175,835,408.86
  5. Step 5: Solve for x
    x = 175,835,408.86/15,150.60
  6. Step 6: Final answer
    x = 11,605.84

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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.