Home / 13,480.12-18,602.58-7,511.65

Finding the Fourth Proportional to 13,480.12, 18,602.58 and 7,511.65

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Solution

The fourth proportional to 13,480.12, 18,602.58 and 7,511.65 is: 10,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.12 : 18,602.58 = 7,511.65 : x
  2. Step 2: Convert to fraction form
    13,480.12/18,602.58 = 7,511.65/x
  3. Step 3: Cross multiply
    13,480.12x = 18,602.58 × 7,511.65
  4. Step 4: Simplify right side
    13,480.12x = 139,736,114.11
  5. Step 5: Solve for x
    x = 139,736,114.11/13,480.12
  6. Step 6: Final answer
    x = 10,366.09

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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.