Home / 10,212.35-15,307.64-5,820.35

Finding the Fourth Proportional to 10,212.35, 15,307.64 and 5,820.35

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Solution

The fourth proportional to 10,212.35, 15,307.64 and 5,820.35 is: 8,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.35 : 15,307.64 = 5,820.35 : x
  2. Step 2: Convert to fraction form
    10,212.35/15,307.64 = 5,820.35/x
  3. Step 3: Cross multiply
    10,212.35x = 15,307.64 × 5,820.35
  4. Step 4: Simplify right side
    10,212.35x = 89,095,831.64
  5. Step 5: Solve for x
    x = 89,095,831.64/10,212.35
  6. Step 6: Final answer
    x = 8,724.32

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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.