Home / 19,347.45-26,697.47-11,389.20

Finding the Fourth Proportional to 19,347.45, 26,697.47 and 11,389.20

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Solution

The fourth proportional to 19,347.45, 26,697.47 and 11,389.20 is: 15,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.45 : 26,697.47 = 11,389.20 : x
  2. Step 2: Convert to fraction form
    19,347.45/26,697.47 = 11,389.20/x
  3. Step 3: Cross multiply
    19,347.45x = 26,697.47 × 11,389.20
  4. Step 4: Simplify right side
    19,347.45x = 304,062,768.38
  5. Step 5: Solve for x
    x = 304,062,768.38/19,347.45
  6. Step 6: Final answer
    x = 15,715.91

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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.