Home / 18,423.55-25,417.28-11,337.67

Finding the Fourth Proportional to 18,423.55, 25,417.28 and 11,337.67

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Solution

The fourth proportional to 18,423.55, 25,417.28 and 11,337.67 is: 15,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.55 : 25,417.28 = 11,337.67 : x
  2. Step 2: Convert to fraction form
    18,423.55/25,417.28 = 11,337.67/x
  3. Step 3: Cross multiply
    18,423.55x = 25,417.28 × 11,337.67
  4. Step 4: Simplify right side
    18,423.55x = 288,172,549.16
  5. Step 5: Solve for x
    x = 288,172,549.16/18,423.55
  6. Step 6: Final answer
    x = 15,641.54

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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.