Home / 15,875.64-21,908.28-8,802.06

Finding the Fourth Proportional to 15,875.64, 21,908.28 and 8,802.06

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Solution

The fourth proportional to 15,875.64, 21,908.28 and 8,802.06 is: 12,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.64 : 21,908.28 = 8,802.06 : x
  2. Step 2: Convert to fraction form
    15,875.64/21,908.28 = 8,802.06/x
  3. Step 3: Cross multiply
    15,875.64x = 21,908.28 × 8,802.06
  4. Step 4: Simplify right side
    15,875.64x = 192,837,995.06
  5. Step 5: Solve for x
    x = 192,837,995.06/15,875.64
  6. Step 6: Final answer
    x = 12,146.79

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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.