Home / 15,478.56-23,215.72-4,386.08

Finding the Fourth Proportional to 15,478.56, 23,215.72 and 4,386.08

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Solution

The fourth proportional to 15,478.56, 23,215.72 and 4,386.08 is: 6,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.56 : 23,215.72 = 4,386.08 : x
  2. Step 2: Convert to fraction form
    15,478.56/23,215.72 = 4,386.08/x
  3. Step 3: Cross multiply
    15,478.56x = 23,215.72 × 4,386.08
  4. Step 4: Simplify right side
    15,478.56x = 101,826,005.18
  5. Step 5: Solve for x
    x = 101,826,005.18/15,478.56
  6. Step 6: Final answer
    x = 6,578.52

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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.