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Finding the Fourth Proportional to 8,890.70, 13,368.45 and 7,465.10

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Solution

The fourth proportional to 8,890.70, 13,368.45 and 7,465.10 is: 11,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.70 : 13,368.45 = 7,465.10 : x
  2. Step 2: Convert to fraction form
    8,890.70/13,368.45 = 7,465.10/x
  3. Step 3: Cross multiply
    8,890.70x = 13,368.45 × 7,465.10
  4. Step 4: Simplify right side
    8,890.70x = 99,796,816.10
  5. Step 5: Solve for x
    x = 99,796,816.10/8,890.70
  6. Step 6: Final answer
    x = 11,224.85

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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.