Home / 15,527.75-21,433.70-9,239.99

Finding the Fourth Proportional to 15,527.75, 21,433.70 and 9,239.99

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Solution

The fourth proportional to 15,527.75, 21,433.70 and 9,239.99 is: 12,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.75 : 21,433.70 = 9,239.99 : x
  2. Step 2: Convert to fraction form
    15,527.75/21,433.70 = 9,239.99/x
  3. Step 3: Cross multiply
    15,527.75x = 21,433.70 × 9,239.99
  4. Step 4: Simplify right side
    15,527.75x = 198,047,127.46
  5. Step 5: Solve for x
    x = 198,047,127.46/15,527.75
  6. Step 6: Final answer
    x = 12,754.40

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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.