Home / 13,312.71-19,957.19-5,516.55

Finding the Fourth Proportional to 13,312.71, 19,957.19 and 5,516.55

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Solution

The fourth proportional to 13,312.71, 19,957.19 and 5,516.55 is: 8,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.71 : 19,957.19 = 5,516.55 : x
  2. Step 2: Convert to fraction form
    13,312.71/19,957.19 = 5,516.55/x
  3. Step 3: Cross multiply
    13,312.71x = 19,957.19 × 5,516.55
  4. Step 4: Simplify right side
    13,312.71x = 110,094,808.91
  5. Step 5: Solve for x
    x = 110,094,808.91/13,312.71
  6. Step 6: Final answer
    x = 8,269.90

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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.