Home / 18,931.65-26,124.73-10,976.46

Finding the Fourth Proportional to 18,931.65, 26,124.73 and 10,976.46

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Solution

The fourth proportional to 18,931.65, 26,124.73 and 10,976.46 is: 15,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.65 : 26,124.73 = 10,976.46 : x
  2. Step 2: Convert to fraction form
    18,931.65/26,124.73 = 10,976.46/x
  3. Step 3: Cross multiply
    18,931.65x = 26,124.73 × 10,976.46
  4. Step 4: Simplify right side
    18,931.65x = 286,757,053.86
  5. Step 5: Solve for x
    x = 286,757,053.86/18,931.65
  6. Step 6: Final answer
    x = 15,146.97

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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.