Home / 13,423.17-20,139.65-6,492.81

Finding the Fourth Proportional to 13,423.17, 20,139.65 and 6,492.81

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Solution

The fourth proportional to 13,423.17, 20,139.65 and 6,492.81 is: 9,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.17 : 20,139.65 = 6,492.81 : x
  2. Step 2: Convert to fraction form
    13,423.17/20,139.65 = 6,492.81/x
  3. Step 3: Cross multiply
    13,423.17x = 20,139.65 × 6,492.81
  4. Step 4: Simplify right side
    13,423.17x = 130,762,920.92
  5. Step 5: Solve for x
    x = 130,762,920.92/13,423.17
  6. Step 6: Final answer
    x = 9,741.58

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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.