Home / 10,355.55-15,433.40-10,339.08

Finding the Fourth Proportional to 10,355.55, 15,433.40 and 10,339.08

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Solution

The fourth proportional to 10,355.55, 15,433.40 and 10,339.08 is: 15,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.55 : 15,433.40 = 10,339.08 : x
  2. Step 2: Convert to fraction form
    10,355.55/15,433.40 = 10,339.08/x
  3. Step 3: Cross multiply
    10,355.55x = 15,433.40 × 10,339.08
  4. Step 4: Simplify right side
    10,355.55x = 159,567,157.27
  5. Step 5: Solve for x
    x = 159,567,157.27/10,355.55
  6. Step 6: Final answer
    x = 15,408.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.