Home / 12,470.63-17,208.90-6,805.13

Finding the Fourth Proportional to 12,470.63, 17,208.90 and 6,805.13

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Solution

The fourth proportional to 12,470.63, 17,208.90 and 6,805.13 is: 9,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.63 : 17,208.90 = 6,805.13 : x
  2. Step 2: Convert to fraction form
    12,470.63/17,208.90 = 6,805.13/x
  3. Step 3: Cross multiply
    12,470.63x = 17,208.90 × 6,805.13
  4. Step 4: Simplify right side
    12,470.63x = 117,108,715.61
  5. Step 5: Solve for x
    x = 117,108,715.61/12,470.63
  6. Step 6: Final answer
    x = 9,390.77

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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.