Home / 15,555.84-23,312.89-5,685.72

Finding the Fourth Proportional to 15,555.84, 23,312.89 and 5,685.72

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Solution

The fourth proportional to 15,555.84, 23,312.89 and 5,685.72 is: 8,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.84 : 23,312.89 = 5,685.72 : x
  2. Step 2: Convert to fraction form
    15,555.84/23,312.89 = 5,685.72/x
  3. Step 3: Cross multiply
    15,555.84x = 23,312.89 × 5,685.72
  4. Step 4: Simplify right side
    15,555.84x = 132,550,564.93
  5. Step 5: Solve for x
    x = 132,550,564.93/15,555.84
  6. Step 6: Final answer
    x = 8,520.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.