Home / 19,345.16-26,691.54-11,386.76

Finding the Fourth Proportional to 19,345.16, 26,691.54 and 11,386.76

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Solution

The fourth proportional to 19,345.16, 26,691.54 and 11,386.76 is: 15,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.16 : 26,691.54 = 11,386.76 : x
  2. Step 2: Convert to fraction form
    19,345.16/26,691.54 = 11,386.76/x
  3. Step 3: Cross multiply
    19,345.16x = 26,691.54 × 11,386.76
  4. Step 4: Simplify right side
    19,345.16x = 303,930,160.01
  5. Step 5: Solve for x
    x = 303,930,160.01/19,345.16
  6. Step 6: Final answer
    x = 15,710.91

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Half scale
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Double scale
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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.