Home / 13,386.08-20,071.01-5,989.16

Finding the Fourth Proportional to 13,386.08, 20,071.01 and 5,989.16

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Solution

The fourth proportional to 13,386.08, 20,071.01 and 5,989.16 is: 8,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.08 : 20,071.01 = 5,989.16 : x
  2. Step 2: Convert to fraction form
    13,386.08/20,071.01 = 5,989.16/x
  3. Step 3: Cross multiply
    13,386.08x = 20,071.01 × 5,989.16
  4. Step 4: Simplify right side
    13,386.08x = 120,208,359.95
  5. Step 5: Solve for x
    x = 120,208,359.95/13,386.08
  6. Step 6: Final answer
    x = 8,980.11

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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.