Home / 12,630.98-17,430.36-6,888.22

Finding the Fourth Proportional to 12,630.98, 17,430.36 and 6,888.22

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Solution

The fourth proportional to 12,630.98, 17,430.36 and 6,888.22 is: 9,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.98 : 17,430.36 = 6,888.22 : x
  2. Step 2: Convert to fraction form
    12,630.98/17,430.36 = 6,888.22/x
  3. Step 3: Cross multiply
    12,630.98x = 17,430.36 × 6,888.22
  4. Step 4: Simplify right side
    12,630.98x = 120,064,154.36
  5. Step 5: Solve for x
    x = 120,064,154.36/12,630.98
  6. Step 6: Final answer
    x = 9,505.53

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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.