Home / 12,975.29-19,457.01-6,398.80

Finding the Fourth Proportional to 12,975.29, 19,457.01 and 6,398.80

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Solution

The fourth proportional to 12,975.29, 19,457.01 and 6,398.80 is: 9,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.29 : 19,457.01 = 6,398.80 : x
  2. Step 2: Convert to fraction form
    12,975.29/19,457.01 = 6,398.80/x
  3. Step 3: Cross multiply
    12,975.29x = 19,457.01 × 6,398.80
  4. Step 4: Simplify right side
    12,975.29x = 124,501,466.95
  5. Step 5: Solve for x
    x = 124,501,466.95/12,975.29
  6. Step 6: Final answer
    x = 9,595.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.