Home / 8,721.95-12,032.43-5,812.17

Finding the Fourth Proportional to 8,721.95, 12,032.43 and 5,812.17

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Solution

The fourth proportional to 8,721.95, 12,032.43 and 5,812.17 is: 8,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.95 : 12,032.43 = 5,812.17 : x
  2. Step 2: Convert to fraction form
    8,721.95/12,032.43 = 5,812.17/x
  3. Step 3: Cross multiply
    8,721.95x = 12,032.43 × 5,812.17
  4. Step 4: Simplify right side
    8,721.95x = 69,934,461.76
  5. Step 5: Solve for x
    x = 69,934,461.76/8,721.95
  6. Step 6: Final answer
    x = 8,018.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.