Home / 13,176.04-19,756.76-5,390.32

Finding the Fourth Proportional to 13,176.04, 19,756.76 and 5,390.32

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Solution

The fourth proportional to 13,176.04, 19,756.76 and 5,390.32 is: 8,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.04 : 19,756.76 = 5,390.32 : x
  2. Step 2: Convert to fraction form
    13,176.04/19,756.76 = 5,390.32/x
  3. Step 3: Cross multiply
    13,176.04x = 19,756.76 × 5,390.32
  4. Step 4: Simplify right side
    13,176.04x = 106,495,258.56
  5. Step 5: Solve for x
    x = 106,495,258.56/13,176.04
  6. Step 6: Final answer
    x = 8,082.49

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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.