Home / 13,207.86-18,226.08-7,902.63

Finding the Fourth Proportional to 13,207.86, 18,226.08 and 7,902.63

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Solution

The fourth proportional to 13,207.86, 18,226.08 and 7,902.63 is: 10,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.86 : 18,226.08 = 7,902.63 : x
  2. Step 2: Convert to fraction form
    13,207.86/18,226.08 = 7,902.63/x
  3. Step 3: Cross multiply
    13,207.86x = 18,226.08 × 7,902.63
  4. Step 4: Simplify right side
    13,207.86x = 144,033,966.59
  5. Step 5: Solve for x
    x = 144,033,966.59/13,207.86
  6. Step 6: Final answer
    x = 10,905.17

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Double scale
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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.