Home / 9,108.92-12,569.99-5,130.41

Finding the Fourth Proportional to 9,108.92, 12,569.99 and 5,130.41

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Solution

The fourth proportional to 9,108.92, 12,569.99 and 5,130.41 is: 7,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.92 : 12,569.99 = 5,130.41 : x
  2. Step 2: Convert to fraction form
    9,108.92/12,569.99 = 5,130.41/x
  3. Step 3: Cross multiply
    9,108.92x = 12,569.99 × 5,130.41
  4. Step 4: Simplify right side
    9,108.92x = 64,489,113.89
  5. Step 5: Solve for x
    x = 64,489,113.89/9,108.92
  6. Step 6: Final answer
    x = 7,079.77

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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.