Home / 13,656.57-18,846.02-7,688.27

Finding the Fourth Proportional to 13,656.57, 18,846.02 and 7,688.27

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Solution

The fourth proportional to 13,656.57, 18,846.02 and 7,688.27 is: 10,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.57 : 18,846.02 = 7,688.27 : x
  2. Step 2: Convert to fraction form
    13,656.57/18,846.02 = 7,688.27/x
  3. Step 3: Cross multiply
    13,656.57x = 18,846.02 × 7,688.27
  4. Step 4: Simplify right side
    13,656.57x = 144,893,157.51
  5. Step 5: Solve for x
    x = 144,893,157.51/13,656.57
  6. Step 6: Final answer
    x = 10,609.78

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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.