Home / 10,263.95-15,389.77-4,988.57

Finding the Fourth Proportional to 10,263.95, 15,389.77 and 4,988.57

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Solution

The fourth proportional to 10,263.95, 15,389.77 and 4,988.57 is: 7,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,263.95 : 15,389.77 = 4,988.57 : x
  2. Step 2: Convert to fraction form
    10,263.95/15,389.77 = 4,988.57/x
  3. Step 3: Cross multiply
    10,263.95x = 15,389.77 × 4,988.57
  4. Step 4: Simplify right side
    10,263.95x = 76,772,944.93
  5. Step 5: Solve for x
    x = 76,772,944.93/10,263.95
  6. Step 6: Final answer
    x = 7,479.86

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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.