Home / 14,719.34-21,955.36-13,390.70

Finding the Fourth Proportional to 14,719.34, 21,955.36 and 13,390.70

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Solution

The fourth proportional to 14,719.34, 21,955.36 and 13,390.70 is: 19,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,719.34 : 21,955.36 = 13,390.70 : x
  2. Step 2: Convert to fraction form
    14,719.34/21,955.36 = 13,390.70/x
  3. Step 3: Cross multiply
    14,719.34x = 21,955.36 × 13,390.70
  4. Step 4: Simplify right side
    14,719.34x = 293,997,639.15
  5. Step 5: Solve for x
    x = 293,997,639.15/14,719.34
  6. Step 6: Final answer
    x = 19,973.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.