Home / 14,722.32-20,312.30-8,347.89

Finding the Fourth Proportional to 14,722.32, 20,312.30 and 8,347.89

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Solution

The fourth proportional to 14,722.32, 20,312.30 and 8,347.89 is: 11,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.32 : 20,312.30 = 8,347.89 : x
  2. Step 2: Convert to fraction form
    14,722.32/20,312.30 = 8,347.89/x
  3. Step 3: Cross multiply
    14,722.32x = 20,312.30 × 8,347.89
  4. Step 4: Simplify right side
    14,722.32x = 169,564,804.31
  5. Step 5: Solve for x
    x = 169,564,804.31/14,722.32
  6. Step 6: Final answer
    x = 11,517.53

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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.