Home / 10,298.80-15,448.20-9,895.60

Finding the Fourth Proportional to 10,298.80, 15,448.20 and 9,895.60

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Solution

The fourth proportional to 10,298.80, 15,448.20 and 9,895.60 is: 14,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,298.80 : 15,448.20 = 9,895.60 : x
  2. Step 2: Convert to fraction form
    10,298.80/15,448.20 = 9,895.60/x
  3. Step 3: Cross multiply
    10,298.80x = 15,448.20 × 9,895.60
  4. Step 4: Simplify right side
    10,298.80x = 152,869,207.92
  5. Step 5: Solve for x
    x = 152,869,207.92/10,298.80
  6. Step 6: Final answer
    x = 14,843.40

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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.