Home / 19,043.79-28,572.53-8,512.93

Finding the Fourth Proportional to 19,043.79, 28,572.53 and 8,512.93

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Solution

The fourth proportional to 19,043.79, 28,572.53 and 8,512.93 is: 12,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.79 : 28,572.53 = 8,512.93 : x
  2. Step 2: Convert to fraction form
    19,043.79/28,572.53 = 8,512.93/x
  3. Step 3: Cross multiply
    19,043.79x = 28,572.53 × 8,512.93
  4. Step 4: Simplify right side
    19,043.79x = 243,235,947.81
  5. Step 5: Solve for x
    x = 243,235,947.81/19,043.79
  6. Step 6: Final answer
    x = 12,772.45

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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.