Home / 14,685.89-20,267.52-8,312.47

Finding the Fourth Proportional to 14,685.89, 20,267.52 and 8,312.47

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Solution

The fourth proportional to 14,685.89, 20,267.52 and 8,312.47 is: 11,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.89 : 20,267.52 = 8,312.47 : x
  2. Step 2: Convert to fraction form
    14,685.89/20,267.52 = 8,312.47/x
  3. Step 3: Cross multiply
    14,685.89x = 20,267.52 × 8,312.47
  4. Step 4: Simplify right side
    14,685.89x = 168,473,110.41
  5. Step 5: Solve for x
    x = 168,473,110.41/14,685.89
  6. Step 6: Final answer
    x = 11,471.77

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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.