Home / 15,386.51-23,071.50-7,972.58

Finding the Fourth Proportional to 15,386.51, 23,071.50 and 7,972.58

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Solution

The fourth proportional to 15,386.51, 23,071.50 and 7,972.58 is: 11,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.51 : 23,071.50 = 7,972.58 : x
  2. Step 2: Convert to fraction form
    15,386.51/23,071.50 = 7,972.58/x
  3. Step 3: Cross multiply
    15,386.51x = 23,071.50 × 7,972.58
  4. Step 4: Simplify right side
    15,386.51x = 183,939,264.11
  5. Step 5: Solve for x
    x = 183,939,264.11/15,386.51
  6. Step 6: Final answer
    x = 11,954.58

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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.