Home / 14,685.71-20,266.30-8,718.57

Finding the Fourth Proportional to 14,685.71, 20,266.30 and 8,718.57

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Solution

The fourth proportional to 14,685.71, 20,266.30 and 8,718.57 is: 12,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.71 : 20,266.30 = 8,718.57 : x
  2. Step 2: Convert to fraction form
    14,685.71/20,266.30 = 8,718.57/x
  3. Step 3: Cross multiply
    14,685.71x = 20,266.30 × 8,718.57
  4. Step 4: Simplify right side
    14,685.71x = 176,693,166.09
  5. Step 5: Solve for x
    x = 176,693,166.09/14,685.71
  6. Step 6: Final answer
    x = 12,031.64

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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.