Home / 12,528.71-18,776.65-5,124.50

Finding the Fourth Proportional to 12,528.71, 18,776.65 and 5,124.50

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Solution

The fourth proportional to 12,528.71, 18,776.65 and 5,124.50 is: 7,680.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.71 : 18,776.65 = 5,124.50 : x
  2. Step 2: Convert to fraction form
    12,528.71/18,776.65 = 5,124.50/x
  3. Step 3: Cross multiply
    12,528.71x = 18,776.65 × 5,124.50
  4. Step 4: Simplify right side
    12,528.71x = 96,220,849.04
  5. Step 5: Solve for x
    x = 96,220,849.04/12,528.71
  6. Step 6: Final answer
    x = 7,680.03

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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.