Home / 19,343.16-26,688.78-11,384.76

Finding the Fourth Proportional to 19,343.16, 26,688.78 and 11,384.76

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Solution

The fourth proportional to 19,343.16, 26,688.78 and 11,384.76 is: 15,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.16 : 26,688.78 = 11,384.76 : x
  2. Step 2: Convert to fraction form
    19,343.16/26,688.78 = 11,384.76/x
  3. Step 3: Cross multiply
    19,343.16x = 26,688.78 × 11,384.76
  4. Step 4: Simplify right side
    19,343.16x = 303,845,354.99
  5. Step 5: Solve for x
    x = 303,845,354.99/19,343.16
  6. Step 6: Final answer
    x = 15,708.15

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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.