Home / 9,121.61-13,681.19-2,547.25

Finding the Fourth Proportional to 9,121.61, 13,681.19 and 2,547.25

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Solution

The fourth proportional to 9,121.61, 13,681.19 and 2,547.25 is: 3,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.61 : 13,681.19 = 2,547.25 : x
  2. Step 2: Convert to fraction form
    9,121.61/13,681.19 = 2,547.25/x
  3. Step 3: Cross multiply
    9,121.61x = 13,681.19 × 2,547.25
  4. Step 4: Simplify right side
    9,121.61x = 34,849,383.39
  5. Step 5: Solve for x
    x = 34,849,383.39/9,121.61
  6. Step 6: Final answer
    x = 3,820.53

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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.