Home / 12,699.48-17,525.36-7,397.36

Finding the Fourth Proportional to 12,699.48, 17,525.36 and 7,397.36

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Solution

The fourth proportional to 12,699.48, 17,525.36 and 7,397.36 is: 10,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.48 : 17,525.36 = 7,397.36 : x
  2. Step 2: Convert to fraction form
    12,699.48/17,525.36 = 7,397.36/x
  3. Step 3: Cross multiply
    12,699.48x = 17,525.36 × 7,397.36
  4. Step 4: Simplify right side
    12,699.48x = 129,641,397.05
  5. Step 5: Solve for x
    x = 129,641,397.05/12,699.48
  6. Step 6: Final answer
    x = 10,208.40

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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.