Home / 18,875.16-26,047.86-11,805.60

Finding the Fourth Proportional to 18,875.16, 26,047.86 and 11,805.60

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Solution

The fourth proportional to 18,875.16, 26,047.86 and 11,805.60 is: 16,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.16 : 26,047.86 = 11,805.60 : x
  2. Step 2: Convert to fraction form
    18,875.16/26,047.86 = 11,805.60/x
  3. Step 3: Cross multiply
    18,875.16x = 26,047.86 × 11,805.60
  4. Step 4: Simplify right side
    18,875.16x = 307,510,616.02
  5. Step 5: Solve for x
    x = 307,510,616.02/18,875.16
  6. Step 6: Final answer
    x = 16,291.82

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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.