Home / 19,688.54-29,516.20-8,587.08

Finding the Fourth Proportional to 19,688.54, 29,516.20 and 8,587.08

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Solution

The fourth proportional to 19,688.54, 29,516.20 and 8,587.08 is: 12,873.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.54 : 29,516.20 = 8,587.08 : x
  2. Step 2: Convert to fraction form
    19,688.54/29,516.20 = 8,587.08/x
  3. Step 3: Cross multiply
    19,688.54x = 29,516.20 × 8,587.08
  4. Step 4: Simplify right side
    19,688.54x = 253,457,949.23
  5. Step 5: Solve for x
    x = 253,457,949.23/19,688.54
  6. Step 6: Final answer
    x = 12,873.38

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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.