Home / 10,486.04-15,690.28-9,230.72

Finding the Fourth Proportional to 10,486.04, 15,690.28 and 9,230.72

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Solution

The fourth proportional to 10,486.04, 15,690.28 and 9,230.72 is: 13,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.04 : 15,690.28 = 9,230.72 : x
  2. Step 2: Convert to fraction form
    10,486.04/15,690.28 = 9,230.72/x
  3. Step 3: Cross multiply
    10,486.04x = 15,690.28 × 9,230.72
  4. Step 4: Simplify right side
    10,486.04x = 144,832,581.40
  5. Step 5: Solve for x
    x = 144,832,581.40/10,486.04
  6. Step 6: Final answer
    x = 13,811.94

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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.