Home / 15,301.50-21,116.07-9,017.70

Finding the Fourth Proportional to 15,301.50, 21,116.07 and 9,017.70

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Solution

The fourth proportional to 15,301.50, 21,116.07 and 9,017.70 is: 12,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.50 : 21,116.07 = 9,017.70 : x
  2. Step 2: Convert to fraction form
    15,301.50/21,116.07 = 9,017.70/x
  3. Step 3: Cross multiply
    15,301.50x = 21,116.07 × 9,017.70
  4. Step 4: Simplify right side
    15,301.50x = 190,418,384.44
  5. Step 5: Solve for x
    x = 190,418,384.44/15,301.50
  6. Step 6: Final answer
    x = 12,444.43

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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.