Home / 14,135.76-21,210.48-5,818.32

Finding the Fourth Proportional to 14,135.76, 21,210.48 and 5,818.32

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Solution

The fourth proportional to 14,135.76, 21,210.48 and 5,818.32 is: 8,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.76 : 21,210.48 = 5,818.32 : x
  2. Step 2: Convert to fraction form
    14,135.76/21,210.48 = 5,818.32/x
  3. Step 3: Cross multiply
    14,135.76x = 21,210.48 × 5,818.32
  4. Step 4: Simplify right side
    14,135.76x = 123,409,359.99
  5. Step 5: Solve for x
    x = 123,409,359.99/14,135.76
  6. Step 6: Final answer
    x = 8,730.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.