Home / 13,718.64-18,930.75-8,053.63

Finding the Fourth Proportional to 13,718.64, 18,930.75 and 8,053.63

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Solution

The fourth proportional to 13,718.64, 18,930.75 and 8,053.63 is: 11,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.64 : 18,930.75 = 8,053.63 : x
  2. Step 2: Convert to fraction form
    13,718.64/18,930.75 = 8,053.63/x
  3. Step 3: Cross multiply
    13,718.64x = 18,930.75 × 8,053.63
  4. Step 4: Simplify right side
    13,718.64x = 152,461,178.59
  5. Step 5: Solve for x
    x = 152,461,178.59/13,718.64
  6. Step 6: Final answer
    x = 11,113.43

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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.