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Finding the Fourth Proportional to 10,085.84, 15,130.04 and 3,929.04

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Solution

The fourth proportional to 10,085.84, 15,130.04 and 3,929.04 is: 5,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.84 : 15,130.04 = 3,929.04 : x
  2. Step 2: Convert to fraction form
    10,085.84/15,130.04 = 3,929.04/x
  3. Step 3: Cross multiply
    10,085.84x = 15,130.04 × 3,929.04
  4. Step 4: Simplify right side
    10,085.84x = 59,446,532.36
  5. Step 5: Solve for x
    x = 59,446,532.36/10,085.84
  6. Step 6: Final answer
    x = 5,894.06

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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.