Home / 13,980.80-19,294.16-8,677.32

Finding the Fourth Proportional to 13,980.80, 19,294.16 and 8,677.32

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Solution

The fourth proportional to 13,980.80, 19,294.16 and 8,677.32 is: 11,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.80 : 19,294.16 = 8,677.32 : x
  2. Step 2: Convert to fraction form
    13,980.80/19,294.16 = 8,677.32/x
  3. Step 3: Cross multiply
    13,980.80x = 19,294.16 × 8,677.32
  4. Step 4: Simplify right side
    13,980.80x = 167,421,557.06
  5. Step 5: Solve for x
    x = 167,421,557.06/13,980.80
  6. Step 6: Final answer
    x = 11,975.11

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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.