Home / 13,117.68-19,654.63-9,215.10

Finding the Fourth Proportional to 13,117.68, 19,654.63 and 9,215.10

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Solution

The fourth proportional to 13,117.68, 19,654.63 and 9,215.10 is: 13,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.68 : 19,654.63 = 9,215.10 : x
  2. Step 2: Convert to fraction form
    13,117.68/19,654.63 = 9,215.10/x
  3. Step 3: Cross multiply
    13,117.68x = 19,654.63 × 9,215.10
  4. Step 4: Simplify right side
    13,117.68x = 181,119,357.88
  5. Step 5: Solve for x
    x = 181,119,357.88/13,117.68
  6. Step 6: Final answer
    x = 13,807.27

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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.