Home / 10,235.60-15,345.30-4,387.40

Finding the Fourth Proportional to 10,235.60, 15,345.30 and 4,387.40

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Solution

The fourth proportional to 10,235.60, 15,345.30 and 4,387.40 is: 6,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.60 : 15,345.30 = 4,387.40 : x
  2. Step 2: Convert to fraction form
    10,235.60/15,345.30 = 4,387.40/x
  3. Step 3: Cross multiply
    10,235.60x = 15,345.30 × 4,387.40
  4. Step 4: Simplify right side
    10,235.60x = 67,325,969.22
  5. Step 5: Solve for x
    x = 67,325,969.22/10,235.60
  6. Step 6: Final answer
    x = 6,577.63

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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.