Home / 7,812.23-11,718.56-2,547.18

Finding the Fourth Proportional to 7,812.23, 11,718.56 and 2,547.18

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Solution

The fourth proportional to 7,812.23, 11,718.56 and 2,547.18 is: 3,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.23 : 11,718.56 = 2,547.18 : x
  2. Step 2: Convert to fraction form
    7,812.23/11,718.56 = 2,547.18/x
  3. Step 3: Cross multiply
    7,812.23x = 11,718.56 × 2,547.18
  4. Step 4: Simplify right side
    7,812.23x = 29,849,288.03
  5. Step 5: Solve for x
    x = 29,849,288.03/7,812.23
  6. Step 6: Final answer
    x = 3,820.84

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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.