Home / 15,734.92-21,700.02-13,091.08

Finding the Fourth Proportional to 15,734.92, 21,700.02 and 13,091.08

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Solution

The fourth proportional to 15,734.92, 21,700.02 and 13,091.08 is: 18,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.92 : 21,700.02 = 13,091.08 : x
  2. Step 2: Convert to fraction form
    15,734.92/21,700.02 = 13,091.08/x
  3. Step 3: Cross multiply
    15,734.92x = 21,700.02 × 13,091.08
  4. Step 4: Simplify right side
    15,734.92x = 284,076,697.82
  5. Step 5: Solve for x
    x = 284,076,697.82/15,734.92
  6. Step 6: Final answer
    x = 18,053.90

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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.