Home / 8,725.90-12,038.79-5,744.74

Finding the Fourth Proportional to 8,725.90, 12,038.79 and 5,744.74

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Solution

The fourth proportional to 8,725.90, 12,038.79 and 5,744.74 is: 7,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.90 : 12,038.79 = 5,744.74 : x
  2. Step 2: Convert to fraction form
    8,725.90/12,038.79 = 5,744.74/x
  3. Step 3: Cross multiply
    8,725.90x = 12,038.79 × 5,744.74
  4. Step 4: Simplify right side
    8,725.90x = 69,159,718.46
  5. Step 5: Solve for x
    x = 69,159,718.46/8,725.90
  6. Step 6: Final answer
    x = 7,925.80

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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.