Home / 13,486.03-18,610.72-7,518.08

Finding the Fourth Proportional to 13,486.03, 18,610.72 and 7,518.08

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Solution

The fourth proportional to 13,486.03, 18,610.72 and 7,518.08 is: 10,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.03 : 18,610.72 = 7,518.08 : x
  2. Step 2: Convert to fraction form
    13,486.03/18,610.72 = 7,518.08/x
  3. Step 3: Cross multiply
    13,486.03x = 18,610.72 × 7,518.08
  4. Step 4: Simplify right side
    13,486.03x = 139,916,812.53
  5. Step 5: Solve for x
    x = 139,916,812.53/13,486.03
  6. Step 6: Final answer
    x = 10,374.95

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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.