Home / 15,666.48-21,621.10-8,594.28

Finding the Fourth Proportional to 15,666.48, 21,621.10 and 8,594.28

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Solution

The fourth proportional to 15,666.48, 21,621.10 and 8,594.28 is: 11,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.48 : 21,621.10 = 8,594.28 : x
  2. Step 2: Convert to fraction form
    15,666.48/21,621.10 = 8,594.28/x
  3. Step 3: Cross multiply
    15,666.48x = 21,621.10 × 8,594.28
  4. Step 4: Simplify right side
    15,666.48x = 185,817,787.31
  5. Step 5: Solve for x
    x = 185,817,787.31/15,666.48
  6. Step 6: Final answer
    x = 11,860.85

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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.