Home / 9,120.88-13,681.45-2,547.10

Finding the Fourth Proportional to 9,120.88, 13,681.45 and 2,547.10

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Solution

The fourth proportional to 9,120.88, 13,681.45 and 2,547.10 is: 3,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.88 : 13,681.45 = 2,547.10 : x
  2. Step 2: Convert to fraction form
    9,120.88/13,681.45 = 2,547.10/x
  3. Step 3: Cross multiply
    9,120.88x = 13,681.45 × 2,547.10
  4. Step 4: Simplify right side
    9,120.88x = 34,848,021.30
  5. Step 5: Solve for x
    x = 34,848,021.30/9,120.88
  6. Step 6: Final answer
    x = 3,820.69

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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.