Home / 8,812.28-13,215.96-3,547.28

Finding the Fourth Proportional to 8,812.28, 13,215.96 and 3,547.28

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Solution

The fourth proportional to 8,812.28, 13,215.96 and 3,547.28 is: 5,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.28 : 13,215.96 = 3,547.28 : x
  2. Step 2: Convert to fraction form
    8,812.28/13,215.96 = 3,547.28/x
  3. Step 3: Cross multiply
    8,812.28x = 13,215.96 × 3,547.28
  4. Step 4: Simplify right side
    8,812.28x = 46,880,710.59
  5. Step 5: Solve for x
    x = 46,880,710.59/8,812.28
  6. Step 6: Final answer
    x = 5,319.93

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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.