Home / 10,210.64-15,312.72-3,970.22

Finding the Fourth Proportional to 10,210.64, 15,312.72 and 3,970.22

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Solution

The fourth proportional to 10,210.64, 15,312.72 and 3,970.22 is: 5,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.64 : 15,312.72 = 3,970.22 : x
  2. Step 2: Convert to fraction form
    10,210.64/15,312.72 = 3,970.22/x
  3. Step 3: Cross multiply
    10,210.64x = 15,312.72 × 3,970.22
  4. Step 4: Simplify right side
    10,210.64x = 60,794,867.20
  5. Step 5: Solve for x
    x = 60,794,867.20/10,210.64
  6. Step 6: Final answer
    x = 5,954.07

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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.