Home / 12,475.25-17,215.90-6,810.13

Finding the Fourth Proportional to 12,475.25, 17,215.90 and 6,810.13

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Solution

The fourth proportional to 12,475.25, 17,215.90 and 6,810.13 is: 9,398.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.25 : 17,215.90 = 6,810.13 : x
  2. Step 2: Convert to fraction form
    12,475.25/17,215.90 = 6,810.13/x
  3. Step 3: Cross multiply
    12,475.25x = 17,215.90 × 6,810.13
  4. Step 4: Simplify right side
    12,475.25x = 117,242,430.99
  5. Step 5: Solve for x
    x = 117,242,430.99/12,475.25
  6. Step 6: Final answer
    x = 9,398.01

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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.