Home / 15,154.08-20,931.40-10,697.73

Finding the Fourth Proportional to 15,154.08, 20,931.40 and 10,697.73

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Solution

The fourth proportional to 15,154.08, 20,931.40 and 10,697.73 is: 14,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.08 : 20,931.40 = 10,697.73 : x
  2. Step 2: Convert to fraction form
    15,154.08/20,931.40 = 10,697.73/x
  3. Step 3: Cross multiply
    15,154.08x = 20,931.40 × 10,697.73
  4. Step 4: Simplify right side
    15,154.08x = 223,918,465.72
  5. Step 5: Solve for x
    x = 223,918,465.72/15,154.08
  6. Step 6: Final answer
    x = 14,776.12

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Similar ratio
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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.