Home / 15,464.90-21,333.30-9,417

Finding the Fourth Proportional to 15,464.90, 21,333.30 and 9,417

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Solution

The fourth proportional to 15,464.90, 21,333.30 and 9,417 is: 12,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.90 : 21,333.30 = 9,417 : x
  2. Step 2: Convert to fraction form
    15,464.90/21,333.30 = 9,417/x
  3. Step 3: Cross multiply
    15,464.90x = 21,333.30 × 9,417
  4. Step 4: Simplify right side
    15,464.90x = 200,895,686.10
  5. Step 5: Solve for x
    x = 200,895,686.10/15,464.90
  6. Step 6: Final answer
    x = 12,990.43

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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.