Home / 15,521.76-23,275.08-5,130

Finding the Fourth Proportional to 15,521.76, 23,275.08 and 5,130

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Solution

The fourth proportional to 15,521.76, 23,275.08 and 5,130 is: 7,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.76 : 23,275.08 = 5,130 : x
  2. Step 2: Convert to fraction form
    15,521.76/23,275.08 = 5,130/x
  3. Step 3: Cross multiply
    15,521.76x = 23,275.08 × 5,130
  4. Step 4: Simplify right side
    15,521.76x = 119,401,160.40
  5. Step 5: Solve for x
    x = 119,401,160.40/15,521.76
  6. Step 6: Final answer
    x = 7,692.50

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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.