Home / 19,338.81-26,685.75-10,955.31

Finding the Fourth Proportional to 19,338.81, 26,685.75 and 10,955.31

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Solution

The fourth proportional to 19,338.81, 26,685.75 and 10,955.31 is: 15,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.81 : 26,685.75 = 10,955.31 : x
  2. Step 2: Convert to fraction form
    19,338.81/26,685.75 = 10,955.31/x
  3. Step 3: Cross multiply
    19,338.81x = 26,685.75 × 10,955.31
  4. Step 4: Simplify right side
    19,338.81x = 292,350,663.83
  5. Step 5: Solve for x
    x = 292,350,663.83/19,338.81
  6. Step 6: Final answer
    x = 15,117.30

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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.