Home / 13,027.52-17,981.20-7,441.76

Finding the Fourth Proportional to 13,027.52, 17,981.20 and 7,441.76

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Solution

The fourth proportional to 13,027.52, 17,981.20 and 7,441.76 is: 10,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.52 : 17,981.20 = 7,441.76 : x
  2. Step 2: Convert to fraction form
    13,027.52/17,981.20 = 7,441.76/x
  3. Step 3: Cross multiply
    13,027.52x = 17,981.20 × 7,441.76
  4. Step 4: Simplify right side
    13,027.52x = 133,811,774.91
  5. Step 5: Solve for x
    x = 133,811,774.91/13,027.52
  6. Step 6: Final answer
    x = 10,271.47

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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.