Home / 14,346.81-19,798.79-8,681.49

Finding the Fourth Proportional to 14,346.81, 19,798.79 and 8,681.49

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Solution

The fourth proportional to 14,346.81, 19,798.79 and 8,681.49 is: 11,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.81 : 19,798.79 = 8,681.49 : x
  2. Step 2: Convert to fraction form
    14,346.81/19,798.79 = 8,681.49/x
  3. Step 3: Cross multiply
    14,346.81x = 19,798.79 × 8,681.49
  4. Step 4: Simplify right side
    14,346.81x = 171,882,953.99
  5. Step 5: Solve for x
    x = 171,882,953.99/14,346.81
  6. Step 6: Final answer
    x = 11,980.57

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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.