Home / 10,670.08-14,731.20-7,318.40

Finding the Fourth Proportional to 10,670.08, 14,731.20 and 7,318.40

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Solution

The fourth proportional to 10,670.08, 14,731.20 and 7,318.40 is: 10,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,670.08 : 14,731.20 = 7,318.40 : x
  2. Step 2: Convert to fraction form
    10,670.08/14,731.20 = 7,318.40/x
  3. Step 3: Cross multiply
    10,670.08x = 14,731.20 × 7,318.40
  4. Step 4: Simplify right side
    10,670.08x = 107,808,814.08
  5. Step 5: Solve for x
    x = 107,808,814.08/10,670.08
  6. Step 6: Final answer
    x = 10,103.84

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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.