Home / 13,879.53-19,153.70-7,506.07

Finding the Fourth Proportional to 13,879.53, 19,153.70 and 7,506.07

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Solution

The fourth proportional to 13,879.53, 19,153.70 and 7,506.07 is: 10,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.53 : 19,153.70 = 7,506.07 : x
  2. Step 2: Convert to fraction form
    13,879.53/19,153.70 = 7,506.07/x
  3. Step 3: Cross multiply
    13,879.53x = 19,153.70 × 7,506.07
  4. Step 4: Simplify right side
    13,879.53x = 143,768,955.69
  5. Step 5: Solve for x
    x = 143,768,955.69/13,879.53
  6. Step 6: Final answer
    x = 10,358.35

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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.