Home / 18,580.07-25,642.30-10,620.79

Finding the Fourth Proportional to 18,580.07, 25,642.30 and 10,620.79

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Solution

The fourth proportional to 18,580.07, 25,642.30 and 10,620.79 is: 14,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.07 : 25,642.30 = 10,620.79 : x
  2. Step 2: Convert to fraction form
    18,580.07/25,642.30 = 10,620.79/x
  3. Step 3: Cross multiply
    18,580.07x = 25,642.30 × 10,620.79
  4. Step 4: Simplify right side
    18,580.07x = 272,341,483.42
  5. Step 5: Solve for x
    x = 272,341,483.42/18,580.07
  6. Step 6: Final answer
    x = 14,657.72

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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.