Home / 13,577.32-18,743.70-9,378.28

Finding the Fourth Proportional to 13,577.32, 18,743.70 and 9,378.28

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Solution

The fourth proportional to 13,577.32, 18,743.70 and 9,378.28 is: 12,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.32 : 18,743.70 = 9,378.28 : x
  2. Step 2: Convert to fraction form
    13,577.32/18,743.70 = 9,378.28/x
  3. Step 3: Cross multiply
    13,577.32x = 18,743.70 × 9,378.28
  4. Step 4: Simplify right side
    13,577.32x = 175,783,666.84
  5. Step 5: Solve for x
    x = 175,783,666.84/13,577.32
  6. Step 6: Final answer
    x = 12,946.86

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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.