Home / 15,283.32-21,090.24-8,569.68

Finding the Fourth Proportional to 15,283.32, 21,090.24 and 8,569.68

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Solution

The fourth proportional to 15,283.32, 21,090.24 and 8,569.68 is: 11,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.32 : 21,090.24 = 8,569.68 : x
  2. Step 2: Convert to fraction form
    15,283.32/21,090.24 = 8,569.68/x
  3. Step 3: Cross multiply
    15,283.32x = 21,090.24 × 8,569.68
  4. Step 4: Simplify right side
    15,283.32x = 180,736,607.92
  5. Step 5: Solve for x
    x = 180,736,607.92/15,283.32
  6. Step 6: Final answer
    x = 11,825.74

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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.