Home / 13,423.20-18,526.65-8,574.81

Finding the Fourth Proportional to 13,423.20, 18,526.65 and 8,574.81

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Solution

The fourth proportional to 13,423.20, 18,526.65 and 8,574.81 is: 11,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.20 : 18,526.65 = 8,574.81 : x
  2. Step 2: Convert to fraction form
    13,423.20/18,526.65 = 8,574.81/x
  3. Step 3: Cross multiply
    13,423.20x = 18,526.65 × 8,574.81
  4. Step 4: Simplify right side
    13,423.20x = 158,862,503.69
  5. Step 5: Solve for x
    x = 158,862,503.69/13,423.20
  6. Step 6: Final answer
    x = 11,834.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.