Home / 12,437.07-17,157.36-7,398.47

Finding the Fourth Proportional to 12,437.07, 17,157.36 and 7,398.47

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Solution

The fourth proportional to 12,437.07, 17,157.36 and 7,398.47 is: 10,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.07 : 17,157.36 = 7,398.47 : x
  2. Step 2: Convert to fraction form
    12,437.07/17,157.36 = 7,398.47/x
  3. Step 3: Cross multiply
    12,437.07x = 17,157.36 × 7,398.47
  4. Step 4: Simplify right side
    12,437.07x = 126,938,127.45
  5. Step 5: Solve for x
    x = 126,938,127.45/12,437.07
  6. Step 6: Final answer
    x = 10,206.43

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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.