Home / 10,436.81-15,655.23-2,645.60

Finding the Fourth Proportional to 10,436.81, 15,655.23 and 2,645.60

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Solution

The fourth proportional to 10,436.81, 15,655.23 and 2,645.60 is: 3,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.81 : 15,655.23 = 2,645.60 : x
  2. Step 2: Convert to fraction form
    10,436.81/15,655.23 = 2,645.60/x
  3. Step 3: Cross multiply
    10,436.81x = 15,655.23 × 2,645.60
  4. Step 4: Simplify right side
    10,436.81x = 41,417,398.21
  5. Step 5: Solve for x
    x = 41,417,398.21/10,436.81
  6. Step 6: Final answer
    x = 3,968.40

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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.