Home / 12,547.59-17,315.36-7,243.29

Finding the Fourth Proportional to 12,547.59, 17,315.36 and 7,243.29

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Solution

The fourth proportional to 12,547.59, 17,315.36 and 7,243.29 is: 9,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.59 : 17,315.36 = 7,243.29 : x
  2. Step 2: Convert to fraction form
    12,547.59/17,315.36 = 7,243.29/x
  3. Step 3: Cross multiply
    12,547.59x = 17,315.36 × 7,243.29
  4. Step 4: Simplify right side
    12,547.59x = 125,420,137.72
  5. Step 5: Solve for x
    x = 125,420,137.72/12,547.59
  6. Step 6: Final answer
    x = 9,995.56

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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.