Home / 15,756.84-21,744.33-8,586.74

Finding the Fourth Proportional to 15,756.84, 21,744.33 and 8,586.74

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Solution

The fourth proportional to 15,756.84, 21,744.33 and 8,586.74 is: 11,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.84 : 21,744.33 = 8,586.74 : x
  2. Step 2: Convert to fraction form
    15,756.84/21,744.33 = 8,586.74/x
  3. Step 3: Cross multiply
    15,756.84x = 21,744.33 × 8,586.74
  4. Step 4: Simplify right side
    15,756.84x = 186,712,908.18
  5. Step 5: Solve for x
    x = 186,712,908.18/15,756.84
  6. Step 6: Final answer
    x = 11,849.64

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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.