Home / 13,015.32-19,491.52-7,451.80

Finding the Fourth Proportional to 13,015.32, 19,491.52 and 7,451.80

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Solution

The fourth proportional to 13,015.32, 19,491.52 and 7,451.80 is: 11,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.32 : 19,491.52 = 7,451.80 : x
  2. Step 2: Convert to fraction form
    13,015.32/19,491.52 = 7,451.80/x
  3. Step 3: Cross multiply
    13,015.32x = 19,491.52 × 7,451.80
  4. Step 4: Simplify right side
    13,015.32x = 145,246,908.74
  5. Step 5: Solve for x
    x = 145,246,908.74/13,015.32
  6. Step 6: Final answer
    x = 11,159.69

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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.