Home / 10,931.14-15,084.12-6,214.24

Finding the Fourth Proportional to 10,931.14, 15,084.12 and 6,214.24

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Solution

The fourth proportional to 10,931.14, 15,084.12 and 6,214.24 is: 8,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.14 : 15,084.12 = 6,214.24 : x
  2. Step 2: Convert to fraction form
    10,931.14/15,084.12 = 6,214.24/x
  3. Step 3: Cross multiply
    10,931.14x = 15,084.12 × 6,214.24
  4. Step 4: Simplify right side
    10,931.14x = 93,736,341.87
  5. Step 5: Solve for x
    x = 93,736,341.87/10,931.14
  6. Step 6: Final answer
    x = 8,575.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.