Home / 10,664.15-14,720.54-9,166.05

Finding the Fourth Proportional to 10,664.15, 14,720.54 and 9,166.05

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Solution

The fourth proportional to 10,664.15, 14,720.54 and 9,166.05 is: 12,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.15 : 14,720.54 = 9,166.05 : x
  2. Step 2: Convert to fraction form
    10,664.15/14,720.54 = 9,166.05/x
  3. Step 3: Cross multiply
    10,664.15x = 14,720.54 × 9,166.05
  4. Step 4: Simplify right side
    10,664.15x = 134,929,159.84
  5. Step 5: Solve for x
    x = 134,929,159.84/10,664.15
  6. Step 6: Final answer
    x = 12,652.60

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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.