Home / 13,718.52-18,930.57-8,053.50

Finding the Fourth Proportional to 13,718.52, 18,930.57 and 8,053.50

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Solution

The fourth proportional to 13,718.52, 18,930.57 and 8,053.50 is: 11,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.52 : 18,930.57 = 8,053.50 : x
  2. Step 2: Convert to fraction form
    13,718.52/18,930.57 = 8,053.50/x
  3. Step 3: Cross multiply
    13,718.52x = 18,930.57 × 8,053.50
  4. Step 4: Simplify right side
    13,718.52x = 152,457,345.50
  5. Step 5: Solve for x
    x = 152,457,345.50/13,718.52
  6. Step 6: Final answer
    x = 11,113.25

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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.