Home / 18,748.48-25,870.98-10,789.16

Finding the Fourth Proportional to 18,748.48, 25,870.98 and 10,789.16

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Solution

The fourth proportional to 18,748.48, 25,870.98 and 10,789.16 is: 14,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.48 : 25,870.98 = 10,789.16 : x
  2. Step 2: Convert to fraction form
    18,748.48/25,870.98 = 10,789.16/x
  3. Step 3: Cross multiply
    18,748.48x = 25,870.98 × 10,789.16
  4. Step 4: Simplify right side
    18,748.48x = 279,126,142.58
  5. Step 5: Solve for x
    x = 279,126,142.58/18,748.48
  6. Step 6: Final answer
    x = 14,887.93

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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.