Home / 13,513.88-18,649.68-7,547.06

Finding the Fourth Proportional to 13,513.88, 18,649.68 and 7,547.06

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Solution

The fourth proportional to 13,513.88, 18,649.68 and 7,547.06 is: 10,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.88 : 18,649.68 = 7,547.06 : x
  2. Step 2: Convert to fraction form
    13,513.88/18,649.68 = 7,547.06/x
  3. Step 3: Cross multiply
    13,513.88x = 18,649.68 × 7,547.06
  4. Step 4: Simplify right side
    13,513.88x = 140,750,253.94
  5. Step 5: Solve for x
    x = 140,750,253.94/13,513.88
  6. Step 6: Final answer
    x = 10,415.24

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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.