Home / 15,875.93-21,908.68-8,802.34

Finding the Fourth Proportional to 15,875.93, 21,908.68 and 8,802.34

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Solution

The fourth proportional to 15,875.93, 21,908.68 and 8,802.34 is: 12,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.93 : 21,908.68 = 8,802.34 : x
  2. Step 2: Convert to fraction form
    15,875.93/21,908.68 = 8,802.34/x
  3. Step 3: Cross multiply
    15,875.93x = 21,908.68 × 8,802.34
  4. Step 4: Simplify right side
    15,875.93x = 192,847,573.53
  5. Step 5: Solve for x
    x = 192,847,573.53/15,875.93
  6. Step 6: Final answer
    x = 12,147.17

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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.