Home / 15,665.04-21,596.82-12,445.53

Finding the Fourth Proportional to 15,665.04, 21,596.82 and 12,445.53

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Solution

The fourth proportional to 15,665.04, 21,596.82 and 12,445.53 is: 17,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.04 : 21,596.82 = 12,445.53 : x
  2. Step 2: Convert to fraction form
    15,665.04/21,596.82 = 12,445.53/x
  3. Step 3: Cross multiply
    15,665.04x = 21,596.82 × 12,445.53
  4. Step 4: Simplify right side
    15,665.04x = 268,783,871.21
  5. Step 5: Solve for x
    x = 268,783,871.21/15,665.04
  6. Step 6: Final answer
    x = 17,158.20

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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.