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Finding the Fourth Proportional to 10,703.60, 16,055.40 and 7,017.20

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Solution

The fourth proportional to 10,703.60, 16,055.40 and 7,017.20 is: 10,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,703.60 : 16,055.40 = 7,017.20 : x
  2. Step 2: Convert to fraction form
    10,703.60/16,055.40 = 7,017.20/x
  3. Step 3: Cross multiply
    10,703.60x = 16,055.40 × 7,017.20
  4. Step 4: Simplify right side
    10,703.60x = 112,663,952.88
  5. Step 5: Solve for x
    x = 112,663,952.88/10,703.60
  6. Step 6: Final answer
    x = 10,525.80

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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.