Home / 13,009.40-17,955.80-8,226.32

Finding the Fourth Proportional to 13,009.40, 17,955.80 and 8,226.32

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Solution

The fourth proportional to 13,009.40, 17,955.80 and 8,226.32 is: 11,354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.40 : 17,955.80 = 8,226.32 : x
  2. Step 2: Convert to fraction form
    13,009.40/17,955.80 = 8,226.32/x
  3. Step 3: Cross multiply
    13,009.40x = 17,955.80 × 8,226.32
  4. Step 4: Simplify right side
    13,009.40x = 147,710,156.66
  5. Step 5: Solve for x
    x = 147,710,156.66/13,009.40
  6. Step 6: Final answer
    x = 11,354.11

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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.