Home / 13,479.48-18,601.56-7,511.04

Finding the Fourth Proportional to 13,479.48, 18,601.56 and 7,511.04

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Solution

The fourth proportional to 13,479.48, 18,601.56 and 7,511.04 is: 10,365.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.48 : 18,601.56 = 7,511.04 : x
  2. Step 2: Convert to fraction form
    13,479.48/18,601.56 = 7,511.04/x
  3. Step 3: Cross multiply
    13,479.48x = 18,601.56 × 7,511.04
  4. Step 4: Simplify right side
    13,479.48x = 139,717,061.22
  5. Step 5: Solve for x
    x = 139,717,061.22/13,479.48
  6. Step 6: Final answer
    x = 10,365.17

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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.