Home / 9,108.30-12,572.99-7,119.51

Finding the Fourth Proportional to 9,108.30, 12,572.99 and 7,119.51

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Solution

The fourth proportional to 9,108.30, 12,572.99 and 7,119.51 is: 9,827.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.30 : 12,572.99 = 7,119.51 : x
  2. Step 2: Convert to fraction form
    9,108.30/12,572.99 = 7,119.51/x
  3. Step 3: Cross multiply
    9,108.30x = 12,572.99 × 7,119.51
  4. Step 4: Simplify right side
    9,108.30x = 89,513,492.44
  5. Step 5: Solve for x
    x = 89,513,492.44/9,108.30
  6. Step 6: Final answer
    x = 9,827.68

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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.