Home / 19,316.80-26,663.52-11,358.64

Finding the Fourth Proportional to 19,316.80, 26,663.52 and 11,358.64

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Solution

The fourth proportional to 19,316.80, 26,663.52 and 11,358.64 is: 15,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.80 : 26,663.52 = 11,358.64 : x
  2. Step 2: Convert to fraction form
    19,316.80/26,663.52 = 11,358.64/x
  3. Step 3: Cross multiply
    19,316.80x = 26,663.52 × 11,358.64
  4. Step 4: Simplify right side
    19,316.80x = 302,861,324.81
  5. Step 5: Solve for x
    x = 302,861,324.81/19,316.80
  6. Step 6: Final answer
    x = 15,678.65

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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.