Home / 13,319.04-19,952.64-8,688

Finding the Fourth Proportional to 13,319.04, 19,952.64 and 8,688

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Solution

The fourth proportional to 13,319.04, 19,952.64 and 8,688 is: 13,015.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.04 : 19,952.64 = 8,688 : x
  2. Step 2: Convert to fraction form
    13,319.04/19,952.64 = 8,688/x
  3. Step 3: Cross multiply
    13,319.04x = 19,952.64 × 8,688
  4. Step 4: Simplify right side
    13,319.04x = 173,348,536.32
  5. Step 5: Solve for x
    x = 173,348,536.32/13,319.04
  6. Step 6: Final answer
    x = 13,015.09

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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.