Home / 19,715.07-29,585.28-7,866.82

Finding the Fourth Proportional to 19,715.07, 29,585.28 and 7,866.82

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Solution

The fourth proportional to 19,715.07, 29,585.28 and 7,866.82 is: 11,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.07 : 29,585.28 = 7,866.82 : x
  2. Step 2: Convert to fraction form
    19,715.07/29,585.28 = 7,866.82/x
  3. Step 3: Cross multiply
    19,715.07x = 29,585.28 × 7,866.82
  4. Step 4: Simplify right side
    19,715.07x = 232,742,072.41
  5. Step 5: Solve for x
    x = 232,742,072.41/19,715.07
  6. Step 6: Final answer
    x = 11,805.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.