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Finding the Fourth Proportional to 10,473.79, 15,647.02 and 7,488.54

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Solution

The fourth proportional to 10,473.79, 15,647.02 and 7,488.54 is: 11,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,473.79 : 15,647.02 = 7,488.54 : x
  2. Step 2: Convert to fraction form
    10,473.79/15,647.02 = 7,488.54/x
  3. Step 3: Cross multiply
    10,473.79x = 15,647.02 × 7,488.54
  4. Step 4: Simplify right side
    10,473.79x = 117,173,335.15
  5. Step 5: Solve for x
    x = 117,173,335.15/10,473.79
  6. Step 6: Final answer
    x = 11,187.29

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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.