Home / 19,641.62-27,106.02-10,689.72

Finding the Fourth Proportional to 19,641.62, 27,106.02 and 10,689.72

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Solution

The fourth proportional to 19,641.62, 27,106.02 and 10,689.72 is: 14,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.62 : 27,106.02 = 10,689.72 : x
  2. Step 2: Convert to fraction form
    19,641.62/27,106.02 = 10,689.72/x
  3. Step 3: Cross multiply
    19,641.62x = 27,106.02 × 10,689.72
  4. Step 4: Simplify right side
    19,641.62x = 289,755,764.11
  5. Step 5: Solve for x
    x = 289,755,764.11/19,641.62
  6. Step 6: Final answer
    x = 14,752.13

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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.