Home / 14,307.56-19,740.70-8,637.84

Finding the Fourth Proportional to 14,307.56, 19,740.70 and 8,637.84

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Solution

The fourth proportional to 14,307.56, 19,740.70 and 8,637.84 is: 11,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.56 : 19,740.70 = 8,637.84 : x
  2. Step 2: Convert to fraction form
    14,307.56/19,740.70 = 8,637.84/x
  3. Step 3: Cross multiply
    14,307.56x = 19,740.70 × 8,637.84
  4. Step 4: Simplify right side
    14,307.56x = 170,517,008.09
  5. Step 5: Solve for x
    x = 170,517,008.09/14,307.56
  6. Step 6: Final answer
    x = 11,917.97

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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.