Home / 18,886.30-26,065.23-10,820.72

Finding the Fourth Proportional to 18,886.30, 26,065.23 and 10,820.72

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Solution

The fourth proportional to 18,886.30, 26,065.23 and 10,820.72 is: 14,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.30 : 26,065.23 = 10,820.72 : x
  2. Step 2: Convert to fraction form
    18,886.30/26,065.23 = 10,820.72/x
  3. Step 3: Cross multiply
    18,886.30x = 26,065.23 × 10,820.72
  4. Step 4: Simplify right side
    18,886.30x = 282,044,555.57
  5. Step 5: Solve for x
    x = 282,044,555.57/18,886.30
  6. Step 6: Final answer
    x = 14,933.82

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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.