Home / 9,121.13-13,681.74-2,547.34

Finding the Fourth Proportional to 9,121.13, 13,681.74 and 2,547.34

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Solution

The fourth proportional to 9,121.13, 13,681.74 and 2,547.34 is: 3,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.13 : 13,681.74 = 2,547.34 : x
  2. Step 2: Convert to fraction form
    9,121.13/13,681.74 = 2,547.34/x
  3. Step 3: Cross multiply
    9,121.13x = 13,681.74 × 2,547.34
  4. Step 4: Simplify right side
    9,121.13x = 34,852,018.92
  5. Step 5: Solve for x
    x = 34,852,018.92/9,121.13
  6. Step 6: Final answer
    x = 3,821.02

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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.