Home / 10,209.77-15,323.04-5,280.92

Finding the Fourth Proportional to 10,209.77, 15,323.04 and 5,280.92

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Solution

The fourth proportional to 10,209.77, 15,323.04 and 5,280.92 is: 7,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.77 : 15,323.04 = 5,280.92 : x
  2. Step 2: Convert to fraction form
    10,209.77/15,323.04 = 5,280.92/x
  3. Step 3: Cross multiply
    10,209.77x = 15,323.04 × 5,280.92
  4. Step 4: Simplify right side
    10,209.77x = 80,919,748.40
  5. Step 5: Solve for x
    x = 80,919,748.40/10,209.77
  6. Step 6: Final answer
    x = 7,925.72

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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.