Home / 15,505.71-21,386.16-10,733.64

Finding the Fourth Proportional to 15,505.71, 21,386.16 and 10,733.64

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Solution

The fourth proportional to 15,505.71, 21,386.16 and 10,733.64 is: 14,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.71 : 21,386.16 = 10,733.64 : x
  2. Step 2: Convert to fraction form
    15,505.71/21,386.16 = 10,733.64/x
  3. Step 3: Cross multiply
    15,505.71x = 21,386.16 × 10,733.64
  4. Step 4: Simplify right side
    15,505.71x = 229,551,342.42
  5. Step 5: Solve for x
    x = 229,551,342.42/15,505.71
  6. Step 6: Final answer
    x = 14,804.31

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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.