Home / 18,628.16-25,707.38-10,130.85

Finding the Fourth Proportional to 18,628.16, 25,707.38 and 10,130.85

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Solution

The fourth proportional to 18,628.16, 25,707.38 and 10,130.85 is: 13,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.16 : 25,707.38 = 10,130.85 : x
  2. Step 2: Convert to fraction form
    18,628.16/25,707.38 = 10,130.85/x
  3. Step 3: Cross multiply
    18,628.16x = 25,707.38 × 10,130.85
  4. Step 4: Simplify right side
    18,628.16x = 260,437,560.02
  5. Step 5: Solve for x
    x = 260,437,560.02/18,628.16
  6. Step 6: Final answer
    x = 13,980.86

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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.