Home / 10,407.60-15,611.40-3,482.10

Finding the Fourth Proportional to 10,407.60, 15,611.40 and 3,482.10

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Solution

The fourth proportional to 10,407.60, 15,611.40 and 3,482.10 is: 5,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.60 : 15,611.40 = 3,482.10 : x
  2. Step 2: Convert to fraction form
    10,407.60/15,611.40 = 3,482.10/x
  3. Step 3: Cross multiply
    10,407.60x = 15,611.40 × 3,482.10
  4. Step 4: Simplify right side
    10,407.60x = 54,360,455.94
  5. Step 5: Solve for x
    x = 54,360,455.94/10,407.60
  6. Step 6: Final answer
    x = 5,223.15

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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.