Home / 10,521.08-14,512.96-6,742.90

Finding the Fourth Proportional to 10,521.08, 14,512.96 and 6,742.90

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Solution

The fourth proportional to 10,521.08, 14,512.96 and 6,742.90 is: 9,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.08 : 14,512.96 = 6,742.90 : x
  2. Step 2: Convert to fraction form
    10,521.08/14,512.96 = 6,742.90/x
  3. Step 3: Cross multiply
    10,521.08x = 14,512.96 × 6,742.90
  4. Step 4: Simplify right side
    10,521.08x = 97,859,384.84
  5. Step 5: Solve for x
    x = 97,859,384.84/10,521.08
  6. Step 6: Final answer
    x = 9,301.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.