Home / 15,457.80-23,186.70-9,917.40

Finding the Fourth Proportional to 15,457.80, 23,186.70 and 9,917.40

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Solution

The fourth proportional to 15,457.80, 23,186.70 and 9,917.40 is: 14,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.80 : 23,186.70 = 9,917.40 : x
  2. Step 2: Convert to fraction form
    15,457.80/23,186.70 = 9,917.40/x
  3. Step 3: Cross multiply
    15,457.80x = 23,186.70 × 9,917.40
  4. Step 4: Simplify right side
    15,457.80x = 229,951,778.58
  5. Step 5: Solve for x
    x = 229,951,778.58/15,457.80
  6. Step 6: Final answer
    x = 14,876.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.