Home / 15,478.20-23,214.60-5,612.40

Finding the Fourth Proportional to 15,478.20, 23,214.60 and 5,612.40

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Solution

The fourth proportional to 15,478.20, 23,214.60 and 5,612.40 is: 8,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.20 : 23,214.60 = 5,612.40 : x
  2. Step 2: Convert to fraction form
    15,478.20/23,214.60 = 5,612.40/x
  3. Step 3: Cross multiply
    15,478.20x = 23,214.60 × 5,612.40
  4. Step 4: Simplify right side
    15,478.20x = 130,289,621.04
  5. Step 5: Solve for x
    x = 130,289,621.04/15,478.20
  6. Step 6: Final answer
    x = 8,417.62

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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.