Home / 10,307.55-15,458.85-2,912.70

Finding the Fourth Proportional to 10,307.55, 15,458.85 and 2,912.70

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Solution

The fourth proportional to 10,307.55, 15,458.85 and 2,912.70 is: 4,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.55 : 15,458.85 = 2,912.70 : x
  2. Step 2: Convert to fraction form
    10,307.55/15,458.85 = 2,912.70/x
  3. Step 3: Cross multiply
    10,307.55x = 15,458.85 × 2,912.70
  4. Step 4: Simplify right side
    10,307.55x = 45,026,992.40
  5. Step 5: Solve for x
    x = 45,026,992.40/10,307.55
  6. Step 6: Final answer
    x = 4,368.35

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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.