Home / 8,916.50-12,304.35-5,140.34

Finding the Fourth Proportional to 8,916.50, 12,304.35 and 5,140.34

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Solution

The fourth proportional to 8,916.50, 12,304.35 and 5,140.34 is: 7,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.50 : 12,304.35 = 5,140.34 : x
  2. Step 2: Convert to fraction form
    8,916.50/12,304.35 = 5,140.34/x
  3. Step 3: Cross multiply
    8,916.50x = 12,304.35 × 5,140.34
  4. Step 4: Simplify right side
    8,916.50x = 63,248,480.96
  5. Step 5: Solve for x
    x = 63,248,480.96/8,916.50
  6. Step 6: Final answer
    x = 7,093.42

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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.