Home / 10,488.20-15,732.30-9,643.40

Finding the Fourth Proportional to 10,488.20, 15,732.30 and 9,643.40

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Solution

The fourth proportional to 10,488.20, 15,732.30 and 9,643.40 is: 14,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.20 : 15,732.30 = 9,643.40 : x
  2. Step 2: Convert to fraction form
    10,488.20/15,732.30 = 9,643.40/x
  3. Step 3: Cross multiply
    10,488.20x = 15,732.30 × 9,643.40
  4. Step 4: Simplify right side
    10,488.20x = 151,712,861.82
  5. Step 5: Solve for x
    x = 151,712,861.82/10,488.20
  6. Step 6: Final answer
    x = 14,465.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.