Home / 10,068.80-15,103.20-9,971.60

Finding the Fourth Proportional to 10,068.80, 15,103.20 and 9,971.60

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Solution

The fourth proportional to 10,068.80, 15,103.20 and 9,971.60 is: 14,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,068.80 : 15,103.20 = 9,971.60 : x
  2. Step 2: Convert to fraction form
    10,068.80/15,103.20 = 9,971.60/x
  3. Step 3: Cross multiply
    10,068.80x = 15,103.20 × 9,971.60
  4. Step 4: Simplify right side
    10,068.80x = 150,603,069.12
  5. Step 5: Solve for x
    x = 150,603,069.12/10,068.80
  6. Step 6: Final answer
    x = 14,957.40

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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.