Home / 10,385.12-14,331.66-5,669.58

Finding the Fourth Proportional to 10,385.12, 14,331.66 and 5,669.58

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Solution

The fourth proportional to 10,385.12, 14,331.66 and 5,669.58 is: 7,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.12 : 14,331.66 = 5,669.58 : x
  2. Step 2: Convert to fraction form
    10,385.12/14,331.66 = 5,669.58/x
  3. Step 3: Cross multiply
    10,385.12x = 14,331.66 × 5,669.58
  4. Step 4: Simplify right side
    10,385.12x = 81,254,492.90
  5. Step 5: Solve for x
    x = 81,254,492.90/10,385.12
  6. Step 6: Final answer
    x = 7,824.13

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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.