Home / 15,549.90-21,459.06-8,476.44

Finding the Fourth Proportional to 15,549.90, 21,459.06 and 8,476.44

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Solution

The fourth proportional to 15,549.90, 21,459.06 and 8,476.44 is: 11,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.90 : 21,459.06 = 8,476.44 : x
  2. Step 2: Convert to fraction form
    15,549.90/21,459.06 = 8,476.44/x
  3. Step 3: Cross multiply
    15,549.90x = 21,459.06 × 8,476.44
  4. Step 4: Simplify right side
    15,549.90x = 181,896,434.55
  5. Step 5: Solve for x
    x = 181,896,434.55/15,549.90
  6. Step 6: Final answer
    x = 11,697.60

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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.