Home / 9,972.10-14,970.30-9,899.20

Finding the Fourth Proportional to 9,972.10, 14,970.30 and 9,899.20

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Solution

The fourth proportional to 9,972.10, 14,970.30 and 9,899.20 is: 14,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,972.10 : 14,970.30 = 9,899.20 : x
  2. Step 2: Convert to fraction form
    9,972.10/14,970.30 = 9,899.20/x
  3. Step 3: Cross multiply
    9,972.10x = 14,970.30 × 9,899.20
  4. Step 4: Simplify right side
    9,972.10x = 148,193,993.76
  5. Step 5: Solve for x
    x = 148,193,993.76/9,972.10
  6. Step 6: Final answer
    x = 14,860.86

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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.