Home / 10,319.60-15,479.12-2,528.40

Finding the Fourth Proportional to 10,319.60, 15,479.12 and 2,528.40

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Solution

The fourth proportional to 10,319.60, 15,479.12 and 2,528.40 is: 3,792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.60 : 15,479.12 = 2,528.40 : x
  2. Step 2: Convert to fraction form
    10,319.60/15,479.12 = 2,528.40/x
  3. Step 3: Cross multiply
    10,319.60x = 15,479.12 × 2,528.40
  4. Step 4: Simplify right side
    10,319.60x = 39,137,407.01
  5. Step 5: Solve for x
    x = 39,137,407.01/10,319.60
  6. Step 6: Final answer
    x = 3,792.53

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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.