Home / 14,088.88-21,150.60-8,916.40

Finding the Fourth Proportional to 14,088.88, 21,150.60 and 8,916.40

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Solution

The fourth proportional to 14,088.88, 21,150.60 and 8,916.40 is: 13,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.88 : 21,150.60 = 8,916.40 : x
  2. Step 2: Convert to fraction form
    14,088.88/21,150.60 = 8,916.40/x
  3. Step 3: Cross multiply
    14,088.88x = 21,150.60 × 8,916.40
  4. Step 4: Simplify right side
    14,088.88x = 188,587,209.84
  5. Step 5: Solve for x
    x = 188,587,209.84/14,088.88
  6. Step 6: Final answer
    x = 13,385.54

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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.