Home / 12,355.46-17,077.21-10,929.06

Finding the Fourth Proportional to 12,355.46, 17,077.21 and 10,929.06

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Solution

The fourth proportional to 12,355.46, 17,077.21 and 10,929.06 is: 15,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.46 : 17,077.21 = 10,929.06 : x
  2. Step 2: Convert to fraction form
    12,355.46/17,077.21 = 10,929.06/x
  3. Step 3: Cross multiply
    12,355.46x = 17,077.21 × 10,929.06
  4. Step 4: Simplify right side
    12,355.46x = 186,637,852.72
  5. Step 5: Solve for x
    x = 186,637,852.72/12,355.46
  6. Step 6: Final answer
    x = 15,105.70

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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.