Home / 18,900.65-26,055.57-12,516.53

Finding the Fourth Proportional to 18,900.65, 26,055.57 and 12,516.53

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Solution

The fourth proportional to 18,900.65, 26,055.57 and 12,516.53 is: 17,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.65 : 26,055.57 = 12,516.53 : x
  2. Step 2: Convert to fraction form
    18,900.65/26,055.57 = 12,516.53/x
  3. Step 3: Cross multiply
    18,900.65x = 26,055.57 × 12,516.53
  4. Step 4: Simplify right side
    18,900.65x = 326,125,323.57
  5. Step 5: Solve for x
    x = 326,125,323.57/18,900.65
  6. Step 6: Final answer
    x = 17,254.71

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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.